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javascript坑与技巧：花式交换两个数值

admin 11月 14, 2020 0

花式交换两个数值

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var a = 1, b =2;
a = [b, b = a][0];
console.log(a, b);  //2 1

var a = 1, b =2
a = a ^ b;
b = a ^ b;
a = a ^ b;
console.log(a,b)  //2 1