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@@ -12,3 +12,7 @@ const tracks = ["DOM", "异步", "模块化"];
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// 1. 把 getLevel 改成箭头函数
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// 2. 把 add 改成箭头函数
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// 3. 用 map + 箭头函数生成 ["[DOM]", ...]
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const getLevel1 = score => score >= 80
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const add1 = (a, b) => a + b
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const tracks1 = tracks.map(item => `[${item}]`)
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console.log(tracks1);
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