Heathy帅道康

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---js // 浮点数相乘 解决0.1 + 0.2 = 0.3的问题 function floatNum(n1, n2) { const n1Len = String(n1).split('.')[

// 浮点数相乘 解决0.1 * 0.2 = 0.02的问题 ---js function floatNum(n1, n2) { const n1Len = String(n1).split('.')

1.如何写出自己一个具有forEach功能的api 2.这样我们得到一个跟forEach函数具有一样的功能

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1.先用ts来表示一个对象 const user2: {[key: string]: string} = { name: "索引签名", age: "28", id: "std1" } 2.函数重载