几道有意思的面向对象面试题

1 let obj = { 2: 3, 3: 4, length: 2, push: Array.prototype.push } obj.push(1); obj.push(2); console.log(obj); 作这道题咱们须要大概了解Array.prototype上的push方法是怎么处理的~web Array.prototype.push = funct

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