let elements = parentNode.getElementsByClassName(names); querySelectorAll 返回与指定的选择器组匹配的文档中的元素列表,返回对象是静态的NodeList。 语法: let elementList = parentNode.querySelectorAll(selectors); querySelectorAll有一个与其他普通的DOM操作不同的地方,使用如下HTML作例子,有一个三个嵌套的d...
Clearer variable names: Uses more descriptive variable names for better readability. Optional starting node: Allows you to specify a starting node to search within a subtree, as per your original request. Comprehensive example usage: Demonstrates how to use the function and expected outputs. This fu...
JavaScript DOM 是指 JavaScript 中的文档对象模型（Document Object Model）；它允许 JavaScript 与 HTML ...
querySelectorAll('#mL li'); const names = ['Chota Bheem','Mighty Raju','Little Krishna']; const opd = document.getElementById('output'); opd.innerHTML = ''; i.forEach((item, index) => { item.textContent = names[index]; // Display updated text in output const newip=document....