{"id":134895,"date":"2020-07-08T08:11:39","date_gmt":"2020-07-08T00:11:39","guid":{"rendered":"http:\/\/4563.org\/?p=134895"},"modified":"2020-07-21T23:45:39","modified_gmt":"2020-07-21T15:45:39","slug":"js-%e5%a4%a7%e4%bd%ac%e8%af%b7%e8%b5%90%e6%95%99%e4%bc%98%e9%9b%85%e7%ae%97%e6%b3%95","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=134895","title":{"rendered":"js \u5927\u4f6c\u8bf7\u8d50\u6559\u4f18\u96c5\u7b97\u6cd5"},"content":{"rendered":"
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js \u5927\u4f6c\u8bf7\u8d50\u6559\u4f18\u96c5\u7b97\u6cd5 <\/h1>\n

<\/p>\n

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\u8cc7\u6df1\u5927\u4f6c : coderQiQin <\/span> <\/i> 15<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n
let params = {     d:9,     i:15,     s:3,     c:15   }   \/\/ ['i','c']    let params2 = {     d:9,     i:20,     s:3,     c:10   }   \/\/ ['i'] <\/code><\/pre>\n
\u671f\u671b\u8fd4\u56de\u6700\u5927\u503c\u7684 key \u7684\u6570\u7ec4, \u6709\u6ca1\u6709\u4f18\u96c5\u65b9\u5f0f,\u6216\u8005\u51fd\u6570\u5f0f<\/p>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (64<\/span>)        <\/div>\n
 <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : hackyuan <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5199\u4e86\u4e2a\u4e0d\u4f18\u96c5\u7684
    “`js
    const maxKeys = obj => Object.entries(obj).reduce((acc, cur) => {
     const [key, value] = cur;
     if (value > acc.max) {
     acc.max = value;
     acc.list = [key];
     return acc;
     }<\/p>\n
     if (value === acc.max) {
     acc.list.push(key);
     }<\/p>\n
     return acc;
    }, {max: 0, list: []}).list;<\/p>\n
    maxKeys(params); \/\/ [“i”, “c”]
    “`                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : fe619742721 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u904d\u5386\u4e00\u6b21\u5c31\u53ef\u4ee5\u4e86\u5427                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : misdake <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 let max = Math.max(…Object.values(params));
    Object.keys(params).filter(key => params[key] === max) \/\/ [“i”, “c”]                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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     \u8cc7\u6df1\u5927\u4f6c : aguesuka <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5efa\u8bae\u7528\u5faa\u73af\uff0c\u663e\u7136\u9700\u8981\u4e00\u4e2a variable \u5f53\u524d\u4fdd\u5b58\u6700\u5927\u503c\uff0c\u548c\u4e00\u4e2a mutabl list \u4fdd\u5b58 key \u3002\u4e0d\u8fc7\u6539\u6210\u9012\u5f52\u5e94\u8be5\u6bd4\u8f83\u6f02\u4eae\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \n
     \u8cc7\u6df1\u5927\u4f6c : Hanggi <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 import _ from ‘lodash’<\/p>\n
    function getMaxKeys (obj) {
     return _.keys(obj).filter(key => obj[key] === _.max(_.values(obj)));
    }<\/p>\n
    result = getMaxKeys(params)                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : cigmax <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 const maxKeys = Object.entries(params).reduce((acc\uff0ccur)=>{if(cur[1]>acc[1]){return [[cur[0]],cur[1]]} else if(cur[1]===acc[1]){return [[…acc[0],cur[0]],cur[1]]}},[[],0])                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \n
     \u8cc7\u6df1\u5927\u4f6c : otakustay <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 const maxKeys = Object.entries(array).reduce(
     ([max, keys], [key, value]) => {
     if (value > max) {
      return [value, [key]];
     }<\/p>\n
     if (value === max) {
     return [value, keys.concat(key)];
     }<\/p>\n
     return [max, keys];
     },
     [-Infinity, []]
    )                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : Mutoo <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 import _ from ‘lodash’;<\/p>\n
    _.chain(params).toPairs().sortBy(i => -i[1]).filter((v, _, arr) => v[1] === arr[0][1]).map(i => i[0]).value()                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : musi <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 “`
    let getMaxKeys = obj => Object.keys(obj).map(key => obj[key] == Math.max.apply(null, Object.values(obj)) ? key : null).filter(k => k != null)
    “`<\/p>\n
    \u8c8c\u4f3c\u8fd8\u6709\u70b9\u4e0d\u4f18\u96c5\u3002\u3002\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : musi <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @musi \u628a map \u76f4\u63a5\u6539\u4e3a filter \u5c31\u6bd4\u8f83\u4f18\u96c5\u4e86\u3002
    “`
    let getMaxKeys = obj => Object.keys(obj).filter(key => obj[key] === Math.max.apply(null, Object.values(obj)))
    “`                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : xrr2016 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 Object.values(params).sort((a, b) => b – a)[0]                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : Cbdy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 function getMaxValueKeys(params) {
     const invertedMap = Object.entries(params).reduce((a, c) => (a.set(c[1], […(a.get(c[1]) || []), c[0]])), new Map)
     const maxKey = Math.max(…invertedMap.keys())
     return invertedMap.get(maxKey)
    }                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : dartabe <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u9876\u4e00\u53d1 filter \u611f\u89c9\u51fd\u6570\u5f0f\u6709\u70b9\u8bed\u4e49\u5316 \u778e\u7528\u7684\u8bdd\u6ca1\u95ee\u9898 \u4f46\u662f\u4e0d\u4f18\u96c5                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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     \u8cc7\u6df1\u5927\u4f6c : dartabe <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4ece\u7b97\u6cd5\u89d2\u5ea6 \u6211\u8fd8\u662f\u89c9\u5f97\u76f4\u63a5 for \u5427                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : yamedie <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u76f2\u731c 7 \u6700\u4f18, \u66f4\u4f18\u4f30\u8ba1\u5c31\u662f\u539f\u751f for \u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : klesh <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 Object.keys(params).reduce((k, r) => params[k] > r ? params[k] : r, Number.MIN_VALUE)                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : no1xsyzy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 #7 \u7684 keys.concat(key) \u53ef\u4ee5\u6539\u6210 […keys, key]                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : Hanggi <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u6ca1\u770b\u61c2\u4f60\u4eec\u5bf9\u4f18\u96c5\u7684\u5b9a\u4e49\u3002\u3002\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : KuroNekoFan <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4f60\u95ee\u7684\u5e94\u8be5\u53eb\u5199\u6cd5\u4e0d\u53eb\u7b97\u6cd5                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \n
     \u8cc7\u6df1\u5927\u4f6c : hupo0 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 const maxKey = function (o) {
     const [r] = Object.entries(o).reduce(([r, max], [k, v]) => {
     switch (Math.sign(v – max)) {
     case -1:
     return [r, max];
     case 0:
     return r.push(k), [r, max];
     case 1:
     return [[k], v];
     }
     });
     return r;
    };                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : ericgui <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u600e\u4e48\u5199\uff0c\u65f6\u95f4\u590d\u6742\u5ea6\u90fd\u662f O(n)
    \u4f18\u96c5\u4e0d\u8d77\u6765                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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     \u8cc7\u6df1\u5927\u4f6c : Tdy95 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 7 +1\uff0c\u6211\u731c\u4e3b\u7684\u610f\u601d\u662f\u60f3\u4ee3\u7801\u770b\u8d77\u6765\u6f02\u4eae\u3001\u77ed\u5c0f\u70b9\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : renmu123 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u6211\u89c9\u5f97 for \u5faa\u73af\u6700\u4f18\u96c5\u95f4\u63a5\uff0c\u4e00\u773c\u5c31\u80fd\u770b\u5f97\u51fa\u6765\u5728\u5e72\u5565                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : wanguorui123 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 Object.entries(params).filter(item=>item[1] === Math.max(…Object.values(params))).flatMap(item=>item[0])                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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    \n
     \u8cc7\u6df1\u5927\u4f6c : aaronlam <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5199\u6cd5\u4e0a\u7684\u4f18\u96c5\u5e94\u8be5\u8fd8\u662f 7 \u7684\u6bd4\u8f83\u4f18\u96c5\u628a                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : wanguorui123 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 var maxKeys = params => Object.entries(params).filter(item=>item[1] === Math.max(…Object.values(params))).flatMap(item=>item[0])                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : source <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e3a\u5565\u90fd\u5728\u8bf4 7 \u6700\u4f18\u3002\u3002\u3002
    reduce \u7684\u56de\u8c03\u81ea\u7531\u5ea6\u592a\u5927\u4e86\uff0c\u5f88\u96be\u4e00\u773c\u770b\u51fa\u7f16\u5199\u8005\u7684\u610f\u56fe
    \u6211\u7b2c\u4e00\u53cd\u5e94\u662f\u8ddf 4 \u4e00\u6837\uff08\u9664\u4e86\u6211\u662f const \u62e5\u62a4\u8005\u4ee5\u5916                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : source <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u770b\u82b1\u4e86\uff0c\u662f 3                                                             <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : otakustay <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @source \u6211\u540c\u610f\u4f60\u7684\u8bf4\u6cd5\uff0c\u4e8b\u5b9e\u4e0a\u6700\u6613\u8bfb\u7684\u662f\u5199\u4e2a for\uff0c\u60f3\u8981 const \u53ef\u4ee5\u6765\u4e2a const max = {current: 0} \u73a9
    \u5199 reduce \u7eaf\u7cb9\u5427\u2026\u2026\u4e00\u79cd\u4fe1\u4ef0                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
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     \u8cc7\u6df1\u5927\u4f6c : tiedan <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u6613\u8bfb\u7b97\u4f18\u96c5\u8fd8\u662f\u4ee3\u7801\u77ed\u7b97\u4f18\u96c5 \u8fd9\u662f\u4e2a\u95ee\u9898                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : roscoecheung1993 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u53ef\u8bfb\u5c31 3 \uff0c\u8ffd\u6c42\u6548\u7387\u5c31 for \u904d\u5386\u4e00\u8d9f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : takemeaway <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 for \u5faa\u73af\u591a\u7b80\u6d01\u660e\u4e86\uff0c\u6574\u90a3\u4e48\u591a\u82b1\u91cc\u80e1\u54e8\u7684\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : jackielin <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5982\u679c\u7528 ramdajs \u7684\u8bdd
    `R.reduce(R.max, -Infinity, Object.values(params))`<\/p>\n
    \u53ef\u4ee5\u89e3\u51b3                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : alonehat <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 Object.entries(params).sort(function(a,b){return b[1]-a[1]}).filter(function(item,index,arr){ return item[1]==arr[0][1] }).join(”).match(\/[a-z]\/g)<\/p>\n
    \u624b\u52a8\u6ed1\u7a3d                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : chen90902 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e5f\u6765\u8bd5\u4e00\u4e0b \"js <\/p>\n
    “`js<\/p>\n
    const maxKeys = (obj) =>
     Object.keys(obj).filter(
     (key, _, arr) =>
     obj[key] ===
     Math.max.apply(
     Math,
     arr.map((key) => obj[key])
     )
     );<\/p>\n
    “`                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : brucewar <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u518d\u7b80\u6d01\u7684\u4ee3\u7801\uff0c\u4e5f\u8981\u4fdd\u8bc1\u522b\u4eba\u6216\u8005\u81ea\u5df1\u56de\u5934\u770b\u7684\u65f6\u5019\u5bb9\u6613\u7406\u89e3                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : gdrk <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u540c\u610f\u4e09\uff0c\u7b80\u6d01\u53ef\u8bfb\u6027\u5f3a\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : assassin1993zj <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @misdake \u5199\u7684\u597d\u554a                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : autoxbc <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 for \u4e0d\u591f\u51fd\u6570\u5f0f
    reduce \u5fc3\u667a\u8d1f\u62c5\u5927<\/p>\n
    \u5199\u591a\u4e86\u5c31\u77e5\u9053\uff0c\u8fd9\u4e24\u4e2a\u80fd\u4e0d\u7528\u5c31\u4e0d\u7528                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : hanxiV2EX <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5199 for \u5427\uff0c \u4e0d\u534e\u4e3d\u82b1\u54e8\uff0c\u770b\u4ee3\u7801\u7684\u4eba\u80fd\u4e00\u773c\u770b\u51fa\u6765\u5c31\u884c\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : hanxiV2EX <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u6211\u4e5f\u5199\u4e86\u4e2a\uff0c\u6ca1\u6709\u8bed\u6cd5\u7cd6\u7684\u3002<\/p>\n
    function getMaxKeys(obj) {
     var maxKeys = [];
     var maxValue = null;
     for (var k in obj) {
     var v = obj[k];
     if (maxValue === null || v >= maxValue) {
     if (maxValue !== v) {
     maxKeys.length = 0;
     }
     maxValue = v;
     maxKeys.push(k);
     }
     }
     return maxKeys;
    }                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : hanxiV2EX <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 https:\/\/i.loli.net\/2020\/07\/09\/hV9Lse3EQ7pfwIg.png                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : lovecy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 function maxKeys(obj){
    let a = [];<\/p>\n
    for (var i in obj) {
    let v = obj[i];
    a[v] || (a[v] = []);
    a[v].push(i);
    }<\/p>\n
    return a.pop();
    }
    \u5927\u4f6c\u4eec\u8f7b\u55b7(^\u30fb\u03c9\u30fb^ )( ^\u30fb\u03c9\u30fb^)(^\u30fb\u03c9\u30fb^ )( ^\u30fb\u03c9\u30fb^)                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : rioshikelong121 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 “`javascript
    function getMaxKeys(obj){
     let maxValue = Math.max(…Object.values(obj));
     return Object.entries(obj).reduce((total, cur) => (cur[1] === maxValue ? total.push(cur[0]) : null, total), []);
    }
    “`<\/p>\n
    \u6211\u6ca1\u8003\u8651\u65f6\u95f4\u590d\u6742\u5ea6\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : Shy07 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 https:\/\/i.loli.net\/2020\/07\/09\/aSFLHGzOXkjrE9d.png                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : rabbbit <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 function getMaxKeys(obj) {
    \u3000 let max = -Infinity;
    \u3000 let maxKeys = [];
    \u3000 for (const [key, value] of Object.entries(obj)) {
    \u3000\u3000 if (max < value) {
    \u3000\u3000\u3000 max = value;
    \u3000\u3000\u3000 maxKeys = [key];
    \u3000\u3000} else if (max === value) {
    \u3000\u3000\u3000 maxKeys.push(key);
    \u3000\u3000}
    \u3000}
    \u3000 return maxKeys;
    }                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : lneoi <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 Object.entries(params).reduce(
     (max, [key, val]) => ((val === max[0]) ? [max[0], […max[1], key]] : max)
     , [Math.max(…Object.values(params)), []]
    )[1]<\/p>\n
    \u6765\u4e2a\u5f3a\u884c\u4e00\u884c\u7684…                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : nightcatsama <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 “`
    const maxKeys = params => Object.keys(params).reduce((acc, cur, _, []) => !acc.length || params[cur] > params[acc[0]] ? [cur] : params[cur] === params[acc[0]] ? acc.concat([cur]) : acc)
    “`<\/p>\n
    \u5199\u4e86\u4e2a\u5f3a\u884c\u4e00\u884c\u7684\uff0c\u65f6\u95f4\u590d\u6742\u5ea6 On \u7684                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : autoxbc <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @lovecy #43 \u7a00\u758f\u6570\u7ec4\uff0c\u8fd9\u4e2a\u89e3\u6cd5\u662f\u522b\u81f4\u7684                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : ericgui <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @rabbbit \u8fd9\u662f\u6b63\u89e3                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : hejingyuan199 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u6211\u60f3\u8d77\u4e86 \u7761\u89c9\u6392\u5e8f
    \u54c8\u54c8
    \u76f8\u5f53\u4f18\u96c5                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : Mutoo <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u51fd\u6570\u5f0f\u53ef\u4ee5\u975e\u5e38\u6613\u8bfb\uff0c\u5e76\u4e14\u5bb9\u6613\u7406\u89e3\u3002<\/p>\n
    const params = {
     d: 9,
     i: 15,
     s: 3,
     c: 15
    };<\/p>\n
    const byValueDesc = i => -i[1];
    const byHeadValue = (v, _, arr) => v[1] === arr[0][1];
    const pickKey = i=>i[0];<\/p>\n
    _.chain(params)
    .toPairs()
    .sortBy(byValueDesc)
    .filter(filterByHeadValue)
    .map(pickKey)
    .value()                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : Mutoo <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @Mutoo typo: .filter(byHeadValue)                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : edk24 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 “`
    function getMaxKey(obj) {
     const vals = Object.values(obj)
     const max = Math.max.apply(null, vals)
     const arr = Object.entries(obj)<\/p>\n
     const retkeys = []
     arr.forEach(item =>{
     if (item[1] == max) {
     retkeys.push(item[0])
     }
     })
     return retkeys
    }<\/p>\n
    getMaxKey(params) \/\/ [ ‘i’, ‘c’ ]
    getMaxKey(params2) \/\/ [ ‘i’ ]
    “`<\/p>\n
    \u4e0d\u4f18\u96c5\u7684\u5199\u6cd5…                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : source <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @autoxbc #39 \u5b8c\u5168\u8ba4\u540c                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : encro <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 mk= null;
    for (k in params) {
     if (mk===null) {
     mk= k;
     continue;
     }
     mk= params[k]>params[mk] ? k : mk;
    }
    return mk;                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : ZeroShiro <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 let max = 0;
     let res = [];
     for (let key in obj) {
     if (obj[key] >= max) {
     if (max !== obj[key]) {
     res = [];
     }
     max = obj[key];
     res.push(key);
     }
     }
     return res;<\/p>\n
    \u5e94\u8be5\u53ef\u4ee5                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : anson2017 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u6700\u7b80\u5355\u6613\u61c2\u7684\u8bdd 3 
    \u6700\u4f18\u662f 43 \u5427                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : woodensail <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e3a\u4ec0\u4e48\u4e0d\u8bd5\u8bd5\u795e\u5947\u7684 lodash \u5462<\/p>\n
    _.map(_.maxBy(_.toPairs(_.groupBy(_.toPairs(params),_.last)),x=>x[0]|0)[1],_.first)                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : shyling <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 [Object.entries(a).sort(([a, b], [c,d]) => d – b)[0][0]]<\/p>\n
    \u4e0d\u77e5\u9053\u5565\u53eb\u4f18\u96c5\u3002\u3002\u3002\u53cd\u6b63\u76f4\u63a5\u6392\u5e8f\u80af\u5b9a\u5bb9\u6613\u8bfb=-=                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : purensong <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 43 \u7684\u786e\u5b9e\u6700\u4f18\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : wanguorui123 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u6539\u8fdb\u7248\uff1a
    var maxKeys = params => Object.entries(params).sort((a,b)=>a[1] < b[1] ? 1 : (a[1] > b[1] ? -1 : 0)).filter((e,i,arr)=>arr[0][1] === e[1]).flatMap(e=>e[0]);                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : buhi <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5c31\u8fd9\u4e2a\u8fd8\u8981\u8ba8\u8bba\u8fd9\u4e48\u957f\u4e00\u4e32 \u641e\u4e0d\u61c2                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : Zenyk <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5efa\u8bae\u8bf4 43 \u6700\u4f18\u7684\u5148\u53bb\u770b\u770b\u4ec0\u4e48\u53eb\u57fa\u6570\u6392\u5e8f \u518d\u770b\u770b\u8fd9\u4e2a\u6392\u5e8f\u7684\u9002\u7528\u573a\u666f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    js \u5927\u4f6c\u8bf7\u8d50\u6559\u4f18\u96c5\u7b97\u6cd5 \u8cc7\u6df1\u5927\u4f6c…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/134895"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=134895"}],"version-history":[{"count":1,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/134895\/revisions"}],"predecessor-version":[{"id":134899,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/134895\/revisions\/134899"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=134895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=134895"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=134895"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}