docs: 批量博文

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杭城小刘
2020-02-25 17:46:51 +08:00
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# Javascript 常用工具封装
## 类型判断
```Javascript
function type (o) {
return Object.prototype.toString.call(o).toString().slice(8, -1);
}
function sayHi () {
console.log(`Everybody sayHi`);
}
console.log(type(1)) // Number
console.log(type('@航程小刘(http://github.com/FantasticLBP)')) // String
console.log(type(null)) // Null
console.log(type(false)) // Boolean
console.log(type({})) // Object
console.log(type([1,2,3])) // Array
console.log(type(sayHi)) // Function
```