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                                            vince-fly

第 158 题：如何模拟实现 Array.prototype.splice

``` Object.defineProperty(Array.prototype, 'vsplice', { value: function (start, delCount, ...args) { if (this === null) { throw TypeError('对象不可为空'); } var o = Object(this); if (arguments.length < 1) { throw TypeError('开始位置参数不能为空'); }...