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实现 Arrary.prototype.filter #16

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nmsn opened this issue Nov 21, 2022 · 1 comment

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nmsn commented Nov 21, 2022 •

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如题

nmsn added the 手写代码 label

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nmsn commented Nov 23, 2022

Array.prototype._filter = function (exc) {
  const result = [];
  this.forEach((item, index, arr) => {
    if (exc(item, index, arr)) {
      result.push(item);
    }
  });
  return result;
}

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