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@ -263,6 +263,9 @@ const nodes = Array.from(foo);
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[1, 2, 3].map((x) => {
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[1, 2, 3].map((x) => {
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return x * x;
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return x * x;
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});
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});
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// best
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[1, 2, 3].map(x => x * x);
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```
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```
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箭头函数取代`Function.prototype.bind`,不应再用self/\_this/that绑定 this。
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箭头函数取代`Function.prototype.bind`,不应再用self/\_this/that绑定 this。
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