| js class static property & public class fields & private class fields | 您所在的位置：网站首页 › js class static › js class static property & public class fields & private class fields |
js class static property & public class fields & private class fields
|
js class static property
class static property (public class fields) const log = console.log; class ESNextStaticProperty { static username = "xgqfrms"; } log(ESNextStaticProperty.username); // "xgqfrms" ESNextStaticProperty.name; // "ESNextStaticProperty"equal to const log = console.log; class ES6StaticProperty { // static name = "xgqfrms"; } ES6StaticProperty.username = "xgqfrms"; log(ESNextStaticProperty.username); // "xgqfrms" ES6StaticProperty.name; // "ES6StaticProperty"https://javascript.info/static-properties-methods#static-properties
static properties const log = console.log; class ClassWithStaticProperty { static staticProperty = `this is a static property `; } const test = ClassWithStaticProperty.staticProperty; log(test); // "this is a static property"static methods const log = console.log; class ClassWithStaticMethod { static staticMethod() { log(`static method has been called`); return `static method`; } } const test = ClassWithStaticMethod.staticMethod(); // "static method has been called" log(test); // "static method" web components class EmojiElement extends HTMLElement { constructor() { super(); this.shadow = this.shadowRoot; // ... web components const template = document.querySelect(`[data-template="emoji-template"]`); this.templateContent = template.content.cloneNode(true); this.shadowEmoji.appendChild(this.templateContent); // 添加样式到 Shadow DOM （template） if (window.ShadyCSS) { window.ShadyCSS.prepareTemplate(template, EmojiElement.tagName); } } static tagName = `emoji-element`; connect() { log(`connect`); } disconnect() { log(`disconnect`); } } customElements.define(EmojiElement.tagName, EmojiElement); Emoji.tagName; // "emoji-element" refshttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/static https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/Public_class_fields https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/Private_class_fields https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes#Static_methods https://javascript.info/static-properties-methods#static-properties http://thecodebarbarian.com/static-properties-in-javascript-with-inheritance.html https://www.sitepoint.com/javascript-private-class-fields/ https://medium.com/@assortedPickle/es6-static-properties-b7fd2a163328 www.cnblogs.com 发布文章使用：只允许注册用户才可以访问！ |
【本文地址】