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纠正 0046.全排列 TS 版本代码
JS 和 TS 里面 数组深拷贝一般采用 ES6 扩展运算符 ... ,或者 Array.from() 方法,而不会采用实例方法 slice. slice方法用于数组分割等操作,请注意代码书写规范!
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@ -341,7 +341,7 @@ function permute(nums: number[]): number[][] {
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return resArr;
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function backTracking(nums: number[], route: number[]): void {
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if (route.length === nums.length) {
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resArr.push(route.slice());
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resArr.push([...route]);
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return;
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}
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let tempVal: number;
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