Typewriter effect sample code implemented by JS-JS Tutorial-php.cn

Typewriter effect sample code implemented by JS

怪我咯

Release： 2017-07-07 15:09:43

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This article mainly introduces the typewriter effect implemented by JS, and analyzes the related implementation techniques of javascriptTiming triggerCustom function to simulate the typing output effect in combination with a complete example form, which is required Friends can refer to

The example in this article describes the typewriter effect achieved by JS. Share it with everyone for your reference, the details are as follows:

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <!-- Always force latest IE rendering engine (even in intranet) & Chrome Frame
    Remove this if you use the .htaccess -->
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <title>JS打字机效果</title>
    <meta name="description" content="">
    <meta name="author" content="Administrator">
    <meta name="viewport" content="width=device-width; initial-scale=1.0">
    <!-- Replace favicon.ico & apple-touch-icon.png in the root of your domain and delete these references -->
  <style type = "text/css">
   #main {
    width: 80%;
    height: 750px;
    margin: auto;
    padding: 10px;
    background: #cfe1ca;
    border: 10px outset #f9c6aa;
    line-height: 30px;
    color: #9f3c61;
    font-size: 18px;
   }
   p {
    text-indent: 30px;
   }
  </style>
  <script type = "text/javascript">
   var typeWriter = {
    msg: function(msg){
     return msg;
    },
    len: function(){
     return this.msg.length;
    },
    seq: 0,
    speed: 150,//打字时间(ms)
    type: function(){
     var _this = this;
     document.getElementById("main").innerHTML = _this.msg.substring(0, _this.seq);
     if (_this.seq == _this.len()) {
      _this.seq = 0;
       clearTimeout(t);
     }
     else {
      _this.seq++;
      var t = setTimeout(function(){_this.type()}, this.speed);
     }
    }
   }
   window.onload = function(){
    alert("welcome to http://www.jb51.net")
    var msg = "JS打字机效果 ，原理很简单：每次多获取一个待打出的字符串的值，输出，覆盖原来输出的内容即可";
    function getMsg(){
     return msg;
    }
    typeWriter.msg = getMsg(msg);
    typeWriter.type();
   }
  </script>
 </head>
 <body>
  <p id = "main"> </p>
 </body>
</html>

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