https://www.ygang.top/posts/bafd68f1/81ac3c6b/0d08345a/47e69f85/ Recent content in JavaScript 高级 on 杨刚的个人网站 Hugo -- gohugo.io zh Copyright © 2018-2025 GradyYoung. All rights reserved. Sun, 27 Apr 2025 00:00:00 +0000 https://www.ygang.top/posts/bafd68f1/81ac3c6b/0d08345a/47e69f85/1ec11caf/ Sun, 27 Apr 2025 00:00:00 +0000 https://www.ygang.top/posts/bafd68f1/81ac3c6b/0d08345a/47e69f85/1ec11caf/ <h2 class="relative group">try-catch-finally <div id="try-catch-finally" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#try-catch-finally" aria-label="锚点">#</a> </span> </h2> <p><strong>try</strong> 语句允许我们定义在执行时进行错误测试的代码块。</p> https://www.ygang.top/posts/bafd68f1/81ac3c6b/0d08345a/47e69f85/0ed486a3/ Fri, 25 Apr 2025 00:00:00 +0000 https://www.ygang.top/posts/bafd68f1/81ac3c6b/0d08345a/47e69f85/0ed486a3/ <h2 class="relative group">use strict <div id="use-strict" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#use-strict" aria-label="锚点">#</a> </span> </h2> <p><code>&quot;use strict&quot;</code>指令在 JavaScript 1.8.5 (ECMAScript5) 中新增。</p> https://www.ygang.top/posts/bafd68f1/81ac3c6b/0d08345a/47e69f85/7232e444/ Fri, 25 Apr 2025 00:00:00 +0000 https://www.ygang.top/posts/bafd68f1/81ac3c6b/0d08345a/47e69f85/7232e444/ <p>Promise 是一个 ECMAScript 6 提供的类，目的是更加优雅地书写复杂的异步任务。</p> <p>由于 Promise 是 ES6 新增加的，所以一些旧的浏览器并不支持，苹果的 Safari 10 和 Windows 的 Edge 14 版本以上浏览器才开始支持 ES6 特性。</p> https://www.ygang.top/posts/bafd68f1/81ac3c6b/0d08345a/47e69f85/6adc7d32/ Sun, 27 Apr 2025 00:00:00 +0000 https://www.ygang.top/posts/bafd68f1/81ac3c6b/0d08345a/47e69f85/6adc7d32/ <h2 class="relative group">函数构造对象 <div id="函数构造对象" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 ltr:-left-6 rtl:-right-6 not-prose group-hover:opacity-100"> <a class="group-hover:text-primary-300 dark:group-hover:text-neutral-700 !no-underline" href="#%e5%87%bd%e6%95%b0%e6%9e%84%e9%80%a0%e5%af%b9%e8%b1%a1" aria-label="锚点">#</a> </span> </h2> <p>使用函数构造对象通常是通过构造函数的方式。构造函数是一种特殊的函数，用于创建具有特定属性和方法的对象。</p>