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How to generate random numbers in JS (detailed tutorial)

亚连
Release： 2018-06-04 17:21:18
Original
2532 people have browsed it

We often use random numbers when making web pages or small programs. The author has compiled a very simple JS program to generate random numbers. Let’s learn together.

Let’s first take a look at the renderings of this source code

You can use it flexibly, we will share the specific JS code with you: 

<!doctype html> 
<html> 
<head> 
<meta charset="utf-8"> 
<title>Document</title> 
<style> 
  #count{ 
    font-size: 20px; 
    color: green; 
    width: 400px; 
    height: 30px; 
    border: 1px solid black; 
    margin: auto; 
    line-height: 30px; 
    text-align: center; 
  } 
  </style> 
</head> 
<body> 
  <p id="count"></p> 
  <script> 
  //产生随机数 
function count (){ 
  var i=Math.random()*(999999-100000)+100000; 
  var j=parseInt(i,10); 
  j="100000-999999随机产生："+j; 
  document.getElementById("count").innerHTML= j; 
} 
setInterval("count()",100); 
  </script> 
</body> 
</html>
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The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.

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