{"id":1402,"date":"2025-02-08T00:16:31","date_gmt":"2025-02-07T16:16:31","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=1402"},"modified":"2025-02-08T00:16:33","modified_gmt":"2025-02-07T16:16:33","slug":"%e9%ab%98%e7%ba%a7-javascript-%e5%bc%80%e5%8f%91%ef%bc%9a%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e7%bc%96%e7%a8%8b%e4%b8%8e%e6%a8%a1%e5%9d%97%e5%8c%96%e5%bc%80%e5%8f%91%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/02\/08\/%e9%ab%98%e7%ba%a7-javascript-%e5%bc%80%e5%8f%91%ef%bc%9a%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e7%bc%96%e7%a8%8b%e4%b8%8e%e6%a8%a1%e5%9d%97%e5%8c%96%e5%bc%80%e5%8f%91%e6%8c%87%e5%8d%97\/","title":{"rendered":"\u9ad8\u7ea7 JavaScript \u5f00\u53d1\uff1a\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4e0e\u6a21\u5757\u5316\u5f00\u53d1\u6307\u5357"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5728\u6df1\u5165\u638c\u63e1\u4e86 JavaScript \u7684\u57fa\u7840\u548c\u8fdb\u9636\u5185\u5bb9\u540e\uff0c\u63a5\u4e0b\u6765\u5c06\u8fdb\u4e00\u6b65\u5b66\u4e60 JavaScript \u4e2d\u7684\u4e00\u4e9b\u9ad8\u7ea7\u7279\u6027\uff0c\u5e2e\u52a9\u4f60\u5728\u5f00\u53d1\u4e2d\u5e94\u5bf9\u66f4\u52a0\u590d\u6742\u548c\u9ad8\u6548\u7684\u9700\u6c42\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u6838\u5fc3\u4e3b\u9898\uff1a\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u3001\u6a21\u5757\u5316\u5f00\u53d1\u3001\u4e8b\u4ef6\u5904\u7406\u4e0e DOM \u64cd\u4f5c\uff0c\u4ee5\u53ca\u9519\u8bef\u5904\u7406\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">1. <strong>\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b<\/strong><\/h4>\n\n\n\n<h5 class=\"wp-block-heading\">\u5bf9\u8c61\u7684\u521b\u5efa\uff08\u5b57\u9762\u91cf\u3001\u6784\u9020\u51fd\u6570\uff09<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5bf9\u8c61\u5b57\u9762\u91cf<\/strong>\uff1a\u901a\u8fc7 <code>{}<\/code> \u76f4\u63a5\u521b\u5efa\u5bf9\u8c61\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  const person = {\n    name: \"Alice\",\n    age: 30,\n    greet: function() {\n      console.log(\"Hello, \" + this.name);\n    }\n  };\n\n  person.greet(); \/\/ \u8f93\u51fa: Hello, Alice<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6784\u9020\u51fd\u6570<\/strong>\uff1a\u4f7f\u7528\u6784\u9020\u51fd\u6570\u521b\u5efa\u5bf9\u8c61\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>  function Person(name, age) {\n    this.name = name;\n    this.age = age;\n    this.greet = function() {\n      console.log(\"Hello, \" + this.name);\n    };\n  }\n\n  const bob = new Person(\"Bob\", 25);\n  bob.greet(); \/\/ \u8f93\u51fa: Hello, Bob<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">\u7c7b\u4e0e\u5b9e\u4f8b\uff08ES6 <code>class<\/code> \u8bed\u6cd5\uff09<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">ES6 \u5f15\u5165\u4e86 <code>class<\/code> \u8bed\u6cd5\u6765\u5b9a\u4e49\u7c7b\uff0c\u8fd9\u4f7f\u5f97\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u66f4\u52a0\u7b80\u6d01\u548c\u6e05\u6670\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Person {\n  constructor(name, age) {\n    this.name = name;\n    this.age = age;\n  }\n\n  greet() {\n    console.log(\"Hello, \" + this.name);\n  }\n}\n\nconst john = new Person(\"John\", 35);\njohn.greet(); \/\/ \u8f93\u51fa: Hello, John<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7c7b\u7684\u7ee7\u627f<\/strong>\uff1a\u901a\u8fc7 <code>extends<\/code> \u5173\u952e\u5b57\u8fdb\u884c\u7ee7\u627f\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>class Employee extends Person {\n  constructor(name, age, position) {\n    super(name, age); \/\/ \u8c03\u7528\u7236\u7c7b\u7684\u6784\u9020\u51fd\u6570\n    this.position = position;\n  }\n\n  greet() {\n    super.greet(); \/\/ \u8c03\u7528\u7236\u7c7b\u7684 greet \u65b9\u6cd5\n    console.log(\"Position: \" + this.position);\n  }\n}\n\nconst jane = new Employee(\"Jane\", 28, \"Manager\");\njane.greet(); \n\/\/ \u8f93\u51fa: Hello, Jane\n\/\/         Position: Manager<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">\u539f\u578b\u94fe\u4e0e\u7ee7\u627f<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u539f\u578b\u94fe<\/strong>\uff1a\u6bcf\u4e2a JavaScript \u5bf9\u8c61\u90fd\u6709\u4e00\u4e2a\u5185\u90e8\u5c5e\u6027 <code>[[Prototype]]<\/code>\uff0c\u6307\u5411\u5b83\u7684\u539f\u578b\u5bf9\u8c61\u3002\u901a\u8fc7\u539f\u578b\u94fe\uff0c\u5b50\u7c7b\u53ef\u4ee5\u7ee7\u627f\u7236\u7c7b\u7684\u65b9\u6cd5\u548c\u5c5e\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>function Animal(name) {\n  this.name = name;\n}\n\nAnimal.prototype.sayHello = function() {\n  console.log(\"Hello, I am \" + this.name);\n};\n\nconst dog = new Animal(\"Dog\");\ndog.sayHello(); \/\/ \u8f93\u51fa: Hello, I am Dog<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7ee7\u627f<\/strong>\uff1a\u901a\u8fc7\u6784\u9020\u51fd\u6570\u7ee7\u627f\uff0c\u5b50\u7c7b\u53ef\u4ee5\u7ee7\u627f\u7236\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>function Dog(name, breed) {\n  Animal.call(this, name); \/\/ \u8c03\u7528\u7236\u7c7b\u6784\u9020\u51fd\u6570\n  this.breed = breed;\n}\n\nDog.prototype = Object.create(Animal.prototype); \/\/ \u8bbe\u7f6e\u539f\u578b\u94fe\nDog.prototype.constructor = Dog;\n\nconst myDog = new Dog(\"Buddy\", \"Golden Retriever\");\nmyDog.sayHello(); \/\/ \u8f93\u51fa: Hello, I am Buddy<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\"><code>this<\/code> \u5728\u5bf9\u8c61\u4e2d\u7684\u5e94\u7528<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5bf9\u8c61\u7684\u65b9\u6cd5\u4e2d\uff0c<code>this<\/code> \u5173\u952e\u5b57\u6307\u5411\u8c03\u7528\u8be5\u65b9\u6cd5\u7684\u5bf9\u8c61\u3002<code>this<\/code> \u53ef\u4ee5\u5728\u4e0d\u540c\u4e0a\u4e0b\u6587\u4e2d\u6709\u4e0d\u540c\u7684\u503c\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u65b9\u6cd5\u8c03\u7528\u7684\u65b9\u5f0f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const person = {\n  name: \"Alice\",\n  greet: function() {\n    console.log(\"Hello, \" + this.name);\n  }\n};\n\nperson.greet(); \/\/ \u8f93\u51fa: Hello, Alice<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u7c7b\u548c\u6784\u9020\u51fd\u6570\u4e2d\uff0c<code>this<\/code> \u6307\u5411\u7c7b\u7684\u5b9e\u4f8b\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">2. <strong>\u6a21\u5757\u5316\u5f00\u53d1<\/strong><\/h4>\n\n\n\n<h5 class=\"wp-block-heading\">ES6 \u6a21\u5757\uff08<code>import<\/code> \u548c <code>export<\/code>\uff09<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">ES6 \u5f15\u5165\u4e86\u539f\u751f\u7684\u6a21\u5757\u5316\u673a\u5236\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>import<\/code> \u548c <code>export<\/code> \u6765\u5f15\u5165\u548c\u5bfc\u51fa\u6a21\u5757\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5bfc\u51fa<\/strong>\uff1a\u53ef\u4ee5\u4f7f\u7528 <code>export<\/code> \u5bfc\u51fa\u51fd\u6570\u3001\u5bf9\u8c61\u6216\u53d8\u91cf\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ utils.js\nexport const PI = 3.14;\nexport function add(a, b) {\n  return a + b;\n}<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5bfc\u5165<\/strong>\uff1a\u4f7f\u7528 <code>import<\/code> \u5bfc\u5165\u5176\u4ed6\u6a21\u5757\u7684\u5185\u5bb9\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ main.js\nimport { PI, add } from '.\/utils.js';\n\nconsole.log(PI); \/\/ \u8f93\u51fa: 3.14\nconsole.log(add(2, 3)); \/\/ \u8f93\u51fa: 5<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">CommonJS \u548c AMD\uff08Node.js \u4e2d\u7684\u6a21\u5757\u5316\uff09<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CommonJS<\/strong>\uff1aNode.js \u4e2d\u7684\u6807\u51c6\u6a21\u5757\u5316\u65b9\u5f0f\uff0c\u4f7f\u7528 <code>require<\/code> \u548c <code>module.exports<\/code> \u6765\u5bfc\u5165\u548c\u5bfc\u51fa\u6a21\u5757\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ utils.js\nmodule.exports = {\n  PI: 3.14,\n  add: function(a, b) {\n    return a + b;\n  }\n};<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ main.js\nconst { PI, add } = require('.\/utils.js');\n\nconsole.log(PI); \/\/ \u8f93\u51fa: 3.14\nconsole.log(add(2, 3)); \/\/ \u8f93\u51fa: 5<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>AMD<\/strong>\uff1aAsynchronous Module Definition\uff08AMD\uff09\u662f\u4e00\u79cd\u9002\u7528\u4e8e\u6d4f\u89c8\u5668\u7684\u6a21\u5757\u5316\u89c4\u8303\uff0c\u5e38\u7528\u4e8e\u524d\u7aef\u5f00\u53d1\uff0c\u652f\u6301\u5f02\u6b65\u52a0\u8f7d\u6a21\u5757\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>define(&#91;'dependency'], function(dep) {\n  \/\/ \u6a21\u5757\u4ee3\u7801\n});<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">3. <strong>\u4e8b\u4ef6\u5904\u7406\u4e0e DOM \u64cd\u4f5c<\/strong><\/h4>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e8b\u4ef6\u76d1\u542c\u4e0e\u5904\u7406\uff08<code>addEventListener<\/code>\uff09<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>addEventListener<\/code><\/strong>\uff1a\u7528\u4e8e\u4e3a DOM \u5143\u7d20\u6dfb\u52a0\u4e8b\u4ef6\u76d1\u542c\u5668\uff0c\u53ef\u4ee5\u5728\u4e8b\u4ef6\u53d1\u751f\u65f6\u89e6\u53d1\u76f8\u5e94\u7684\u56de\u8c03\u51fd\u6570\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>const button = document.querySelector('button');\n\nbutton.addEventListener('click', function() {\n  alert('Button clicked!');\n});<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e8b\u4ef6\u79fb\u9664<\/strong>\uff1a\u901a\u8fc7 <code>removeEventListener<\/code> \u79fb\u9664\u4e8b\u4ef6\u76d1\u542c\u5668\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>button.removeEventListener('click', function() {\n  alert('Button clicked!');\n});<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">DOM \u64cd\u4f5c\uff08\u67e5\u627e\u3001\u4fee\u6539\u3001\u5220\u9664\u8282\u70b9\uff09<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u67e5\u627e\u8282\u70b9<\/strong>\uff1a\u4f7f\u7528 <code>document.querySelector()<\/code> \u6216 <code>document.getElementById()<\/code> \u7b49\u65b9\u6cd5\u67e5\u627e DOM \u5143\u7d20\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>const div = document.querySelector('#myDiv');<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4fee\u6539\u8282\u70b9<\/strong>\uff1a\u901a\u8fc7 <code>.innerHTML<\/code>, <code>.textContent<\/code>, <code>.style<\/code> \u7b49\u5c5e\u6027\u4fee\u6539\u8282\u70b9\u5185\u5bb9\u548c\u6837\u5f0f\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>div.innerHTML = \"New content\";\ndiv.style.color = \"blue\";<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5220\u9664\u8282\u70b9<\/strong>\uff1a\u901a\u8fc7 <code>parentNode.removeChild()<\/code> \u5220\u9664\u8282\u70b9\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>div.parentNode.removeChild(div);<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">\u4e8b\u4ef6\u5192\u6ce1\u4e0e\u6355\u83b7<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e8b\u4ef6\u5192\u6ce1\uff08Bubbling\uff09<\/strong>\uff1a\u4e8b\u4ef6\u4ece\u76ee\u6807\u5143\u7d20\u5f00\u59cb\uff0c\u5411\u4e0a\u4f20\u9012\u5230 <code>document<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u4e8b\u4ef6\u6355\u83b7\uff08Capturing\uff09<\/strong>\uff1a\u4e8b\u4ef6\u4ece <code>document<\/code> \u5f00\u59cb\uff0c\u5411\u4e0b\u4f20\u9012\u5230\u76ee\u6807\u5143\u7d20\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u901a\u8fc7 <code>addEventListener<\/code> \u7684\u7b2c\u4e09\u4e2a\u53c2\u6570\u8bbe\u7f6e\u4e3a <code>true<\/code> \u542f\u7528\u6355\u83b7\u6a21\u5f0f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>document.getElementById('btn').addEventListener('click', function() {\n  console.log('Button clicked');\n}, true); \/\/ \u6355\u83b7\u6a21\u5f0f<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">\u8868\u5355\u64cd\u4f5c\u4e0e\u9a8c\u8bc1<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u8868\u5355\u63d0\u4ea4<\/strong>\uff1a\u4f7f\u7528 JavaScript \u76d1\u542c\u8868\u5355\u7684 <code>submit<\/code> \u4e8b\u4ef6\uff0c\u9632\u6b62\u9ed8\u8ba4\u884c\u4e3a\uff0c\u8fdb\u884c\u81ea\u5b9a\u4e49\u9a8c\u8bc1\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>const form = document.querySelector('form');\nform.addEventListener('submit', function(event) {\n  event.preventDefault(); \/\/ \u963b\u6b62\u8868\u5355\u63d0\u4ea4\n  \/\/ \u81ea\u5b9a\u4e49\u9a8c\u8bc1\u903b\u8f91\n  console.log(\"Form submitted!\");\n});<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9a8c\u8bc1<\/strong>\uff1a\u53ef\u4ee5\u901a\u8fc7 <code>checkValidity()<\/code> \u65b9\u6cd5\u9a8c\u8bc1\u8868\u5355\u5b57\u6bb5\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>const input = document.querySelector('input');\nif (!input.checkValidity()) {\n  alert(\"Invalid input!\");\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">4. <strong>\u9519\u8bef\u5904\u7406<\/strong><\/h4>\n\n\n\n<h5 class=\"wp-block-heading\"><code>try...catch<\/code> \u8bed\u53e5<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\"><code>try...catch<\/code> \u7528\u4e8e\u6355\u83b7\u4ee3\u7801\u4e2d\u7684\u9519\u8bef\u5e76\u8fdb\u884c\u5904\u7406\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>try {\n  let result = riskyFunction();\n} catch (error) {\n  console.error(\"Error caught:\", error);\n}<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">\u81ea\u5b9a\u4e49\u9519\u8bef\uff08<code>throw<\/code> \u5173\u952e\u5b57\uff09<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f7f\u7528 <code>throw<\/code> \u5173\u952e\u5b57\u629b\u51fa\u81ea\u5b9a\u4e49\u9519\u8bef\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>function validateAge(age) {\n  if (age &lt; 18) {\n    throw new Error(\"Age must be at least 18\");\n  }\n  return true;\n}\n\ntry {\n  validateAge(16);\n} catch (error) {\n  console.error(error.message); \/\/ \u8f93\u51fa: Age must be at least 18\n}<\/code><\/pre>\n\n\n\n<h5 class=\"wp-block-heading\">\u5f02\u5e38\u5904\u7406\u7684\u6700\u4f73\u5b9e\u8df5<\/h5>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u907f\u514d\u8fc7\u591a\u7684\u5d4c\u5957<\/strong>\uff1a\u5c06\u4ee3\u7801\u5206\u89e3\u6210\u66f4\u5c0f\u7684\u51fd\u6570\uff0c\u907f\u514d\u591a\u5c42\u5d4c\u5957\u7684 <code>try...catch<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u6355\u83b7\u5e76\u5904\u7406\u7279\u5b9a\u9519\u8bef<\/strong>\uff1a\u901a\u8fc7\u68c0\u67e5\u9519\u8bef\u7684\u7c7b\u578b\uff08<code>instanceof<\/code>\uff09\u6765\u5904\u7406\u4e0d\u540c\u7684\u9519\u8bef\u7c7b\u578b\u3002<\/li>\n\n\n\n<li><strong>\u8bb0\u5f55\u9519\u8bef<\/strong>\uff1a\u5728\u751f\u4ea7\u73af\u5883\u4e2d\uff0c\u8bb0\u5f55\u9519\u8bef\u5e76\u62a5\u544a\u7ed9\u65e5\u5fd7\u7cfb\u7edf\uff0c\u4ee5\u4fbf\u8c03\u8bd5\u548c\u76d1\u63a7\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>try {\n  riskyFunction();\n} catch (error) {\n  if (error instanceof TypeError) {\n    console.error(\"Type error occurred:\", error);\n  } else {\n    console.error(\"Unknown error:\", error);\n  }\n\n\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5c0f\u7ed3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u5b66\u4e60 JavaScript \u7684\u9ad8\u7ea7\u7279\u6027\uff0c\u60a8\u5c06\u80fd\u591f\u638c\u63e1\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u3001\u6a21\u5757\u5316\u5f00\u53d1\u3001\u4e8b\u4ef6\u5904\u7406\u4e0e DOM \u64cd\u4f5c\u4ee5\u53ca\u9519\u8bef\u5904\u7406\u7b49\u5173\u952e\u6982\u5ff5\u3002\u8fd9\u4e9b\u9ad8\u7ea7\u6280\u672f\u4e0d\u4ec5\u5e2e\u52a9\u60a8\u6784\u5efa\u66f4\u52a0\u7075\u6d3b\u3001\u53ef\u7ef4\u62a4\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u8fd8\u4e3a\u60a8\u63d0\u4f9b\u4e86\u66f4\u9ad8\u6548\u7684\u5f00\u53d1\u5de5\u5177\uff0c\u4f7f\u5f97\u5f00\u53d1\u8fc7\u7a0b\u66f4\u52a0\u987a\u7545\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u6df1\u5165\u638c\u63e1\u4e86 JavaScript \u7684\u57fa\u7840\u548c\u8fdb\u9636\u5185\u5bb9\u540e\uff0c\u63a5\u4e0b\u6765\u5c06\u8fdb\u4e00\u6b65\u5b66\u4e60 JavaScript \u4e2d\u7684\u4e00\u4e9b\u9ad8\u7ea7 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"class_list":["post-1402","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1402","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=1402"}],"version-history":[{"count":2,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1402\/revisions"}],"predecessor-version":[{"id":1418,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1402\/revisions\/1418"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=1402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=1402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=1402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}