function getSudokuItem(params) {     const sudokuItem = []     while (sudokuItem.length < 9) {         let num =parseInt(Math.random() * 9 + 1,10)         while (sudokuItem.includes(num)) {             num =parseInt(Math.random() * 9 + 1,10)         }         sudokuItem.push(num)     }     return sudokuItem } function getSudokuData(params) {     const sudokuData = [];     while (sudokuData.length < 9) {         let item = getSudokuItem()         function getExisted() {             item = getSudokuItem()             let existed = false             for (let i = 0; i < 9; i++) {                 if (sudokuData.map(a => a[i]).includes(item[i])) {                     existed = true;                     break                 }             }             const s = [1,4,7], t = [2,5,8], i = sudokuData.length             if (s.includes(i)) {                 const flag0 = sudokuData[i - 1].filter((d, j) => j < 3).find(a => a === item[0]  || a === item[1] || a === item[2])                 const flag1 = sudokuData[i - 1].filter((d, j) => j < 6 && j >= 3).find(a => a === item[3]  || a === item[4] || a === item[5])                 const flag2 = sudokuData[i - 1].filter((d, j) => j < 9 && j >= 6).find(a => a === item[6]  || a === item[7] || a === item[8])                 if (flag0 || flag1 || flag2) {                     existed = true;                 }             }             if (t.includes(i)) {                 const flag0 = sudokuData[i - 2].filter((d, j) => j < 3).concat(sudokuData[i - 1].filter((d, j) => j < 3)).find(a => a === item[0]  || a === item[1] || a === item[2])                 const flag1 = sudokuData[i - 2].filter((d, j) => j < 6 && j >= 3).concat(sudokuData[i - 1].filter((d, j) => j < 6 && j >= 3)).find(a => a === item[3]  || a === item[4] || a === item[5])                 const flag2 = sudokuData[i - 2].filter((d, j) => j < 9 && j >= 6).concat(sudokuData[i - 1].filter((d, j) => j < 9 && j >= 6)).find(a => a === item[6]  || a === item[7] || a === item[8])                 if (flag0 || flag1 || flag2) {                     existed = true;                 }             }             return existed         }         while(getExisted()) {}         sudokuData.push(item)     }     return sudokuData } console.table(getSudokuData())  

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