In JavaScript, the return value of the random() method contains 0; the random() method can return a random number between 0 and 1. The returned result does not contain 1, but contains 0. The syntax is "Math .random()".
The operating environment of this tutorial: Windows 10 system, JavaScript version 1.8.5, Dell G3 computer.
The random() method can return a random number between 0 (inclusive) ~ 1 (exclusive).
The syntax is:
Math.random()
Return value:
A pseudo-random number between 0.0 ~ 1.0 (not included).
The example is as follows:
<html>
<head>
<meta charset="utf-8">
<title>123</title>
</head>
<body>
<p id="demo">点击按钮显示一个 1 到 100 的随机数。</p>
<button onclick="myFunction()">点我</button>
<script>
function myFunction(){
var x=document.getElementById("demo")
x.innerHTML=Math.floor((Math.random()*100)+1);
}
</script>
</body>
</html>Output result:
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