如何用 JavaScript 创建一个打字效果?
要使用 JavaScript 创建一个打字效果,以下是代码 -
范例
<!DOCTYPE html> <html> <head> <style> body{ font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; } button{ padding:10px; font-size: 18px; background-color: rgb(128, 19, 218); color:white; border:none; } .heading{ color:crimson; } </style> </head> <body> <h1>typeText</h1> <button class="typeButton">Click me</button> <h2 class="heading"></h2> <script> document.querySelector('.typeButton').addEventListener('click',typeText); var i = 0; var text = 'This text is currently being typed across... It is still typing..'; var speed = 50; function typeText() { if (i < text.length) { document.querySelector('.heading').innerHTML += text.charAt(i); i++; setTimeout(typeText, speed); } } </script> </body> </html>
输出
以上代码将产生以下输出 -
点击“点击我”按钮后 -
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