console.log("jerry" instanceof String);//false console.log(12 instanceof Number);//false console.log(true instanceof Boolean);//false //console.log(undefined instanceof Undefined);//报错 //console.log(null instanceof Null);//报错 console.log({name: "jerry"} instanceof Object);//true console.log(function(){} instanceof Function);//true console.log([] instanceof Array);//true console.log(new Date instanceof Date);//true console.log(/\d/ instanceof RegExp);//true function Person(){}; console.log(new Person instanceof Person);//true console.log(new Person instanceof Object);//true
以上内容就是详解JavaScript中的4种类型识别方法，希望大家喜欢。
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