In JavaScript, the constructor property returns the constructor function for an object.The return value is a reference to the function, not the name of the function:For JavaScript arrays the constructor property returns function Array() { [native code] }...
JavaScript(JS) array.constructor levizhong no pain,no gain Array对象允许在一个变量中存储多个值。它存储相同类型元素的固定大小的顺序集合。数组用于存储数据集合,但将数组看作同一类型变量的集合通常更有用。本文主要介绍JavaScript(JS) array.constructor 属性。 原文地址:JavaScript(JS) array.constructor ...
JavaScript 数组 constructor 属性返回 function Array () { [ native code ] } JavaScript 数字 constructor 属性返回 function Number () { [ native code ] } JavaScript 字符串 constructor 属性返回 function String() { [ native code ] } 如果一个变量是数组你可以使用 constructor 属性来定义。 语法 arra...
Array对象允许在一个变量中存储多个值。它存储相同类型元素的固定大小的顺序集合。数组用于存储数据集合,但将数组看作同一类型变量的集合通常更有用。本文主要介绍JavaScript(JS) array.constructor 属性。 原文地址:JavaScript(JS) array.constructor
JavaScript(JS) array.constructor Array对象允许在一个变量中存储多个值。它存储相同类型元素的固定大小的顺序集合。数组用于存储数据集合,但将数组看作同一类型变量的集合通常更有用。本文主要介绍JavaScript(JS) array.constructor 属性。 JavaScript(JS) array.constructor...
The constructor is a property in JavaScript, so it doesn't take any parameters. constructor Return Value Returns the constructor function for the array. For JavaScript arrays, the constructor property returns function Array() { [native code] }. Note: The return value is a reference to the fun...
The JavaScriptprototypeproperty allows you to add new properties to objects: Example functionPerson(first, last, age, eyecolor) { this.firstName= first; this.lastName= last; this.eyeColor= eyecolor; } Person.prototype.nationality="English"; ...
Get the array constructor: constfruits = ["Banana","Orange","Apple","Mango"]; lettext = fruits.constructor; Try it Yourself » Description Theconstructorproperty returns the function that created the Array prototype. For JavaScript arrays theconstructorproperty returns: ...
js vardv=Int32Array([1,2,3]);// TypeError: calling a builtin Int32Array constructor// without new is forbidden js vardv=newInt32Array([1,2,3]);
从ECMAScript 2015 开始,Uint8ClampedArray构造函数需要用一个new操作符来构建。从现在开始,不使用new来调用一个Uint8ClampedArray构造函数将会抛出一个TypeError。 js vardv=Uint8ClampedArray([1,2,3]);// TypeError: calling a builtin Uint8ClampedArray constructor// without new is forbidden ...