Uncaught TypeError: Header is not a constructor Uncaught TypeError: Button is not a constructor 我可能会错过什么? 这是我的 webpack 配置: var path = require('path'); var webpack = require('webpack'); var CleanPlugin = require('clean-webpack-plugin'); var ExtractPlugin = require('extract...
When returning an immediately-resolved or immediately-rejected Promise, you do not need to create anew Promise(...)and act on it. This is not legal (thePromise constructoris not being called correctly) and will throw aTypeError: this is not a constructorexception: return new Promise.resolve(t...
当我们尝试将Promise.resolve()方法与new运算符一起使用时,会出现“Promise.resolve is not a constructor”错误。Promise.resolve()方法不是构造函数,因此应该在没有 new 运算符的情况下使用它,例如Promise.resolve('example')。 下面是一个产生上述错误的示例代码 // ⛔️ Promise.resolve is not a constructo...
let obj = undefinedconsole.log(obj&&obj.id) 7、TypeError: 'x' is not a constructor 含义:表示 ‘x’不是构造函数 为什么报错? 使用不是构造器的对象或者变量来作为构造器使用。 比如:new 10。 举个栗子 let Car = 1;new Car();new Math();...
问创建对象时Javascript "Not a Constructor“异常EN原因是，当它试图初始化y时，它会创建一个临时的"y...
The JavaScript exception "is not a constructor" occurs when there was an attempt to use an object or a variable as a constructor, but that …
Constructor Error in TypeScript and JavaScript with <class>, JS is not a constructor, Creating Constructors from Constructors: Resolving the Javascript TypeError '... is not a Constructor'
问创建对象时Javascript "Not a Constructor“异常EN问题中发布的代码无法生成该错误，因为Project不是用户...
b=new a(); 还是可以正常运行。 但是再改一下就不行了 a=function (){ this.a1=function (){ this.a2="haha"; }; } b=new a(); e=new a.a1(); chrome控制台提示Uncaught TypeError: a.a1 is not a constructor 想问一下这是什么原因?
o.run() // Uncaught TypeError: o.run is not a function // 4.2 new关键字后接基本类型 var p = new 456 // Uncaught TypeError: 456 is not a constructor 5. URIError,URL错误 主要是相关函数的参数不正确。 decodeURI("%") // Uncaught URIError: URI malformed at decodeURI ...