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| <!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Typewriter Effect</title>
<style>
#typewriter {
white-space: nowrap;
overflow: hidden;
border-right: .15em solid orange;
font-size: 24px;
font-family: monospace;
animation: wink .4s infinite;
position: relative;
display: inline-block;
}
@keyframes wink {
0%,100% {
border-right-color: transparent;
}
50% {
border-right-color: orange;
}
}
</style>
</head>
<body>
<div id="typewriter"></div>
<script>
function typewriter(id,text = "This is a typewriter effect example.",delay = 100){
let ele = document.getElementById(id)
let typewriterText = '';
let charIndex = 0;
function typeNextCharacter() {
const char = text[charIndex];
typewriterText += char
outputText(typewriterText)
charIndex++;
if (charIndex < text.length) {
setTimeout(typeNextCharacter, delay);
}else{
console.log('输出完成');
setTimeout(()=>{
delText()
},2000)
}
}
function delText(){
charIndex--;
if(charIndex >= 0){
typewriterText = typewriterText.substring(0, charIndex)
setTimeout(delText, 25);
outputText(typewriterText)
}else{
console.log('删除完成!');
}
}
function outputText(str){
ele.innerHTML = str
}
setTimeout(typeNextCharacter, delay);
}
typewriter('typewriter',"This is a typewriter effect example.....",100)
</script>
</body>
</html>
|