Marusya's School Notes

Math.random

The Math object allows you to perform mathematical tasks on numbers and includes several mathematical methods. One common use of the Math object is to create a random number with Math.random(), which always returns a number lower than 1:

Math.random(); // returns a random number

HTML file:	Displayed by browser:
<body> <p>Math.random() returns a random number between 0 (inclusive) and 1 (exclusive):<p> <button onclick="myFunction()">Try it</button> <p id="demo"></p> <script> function myFunction() { document.getElementById("demo").innerHTML = Math.random(); } </script> </body>	Math.random() returns a random number between 0 (inclusive) and 1 (exclusive):

HTML file:

Displayed by browser:

<body>
<p>Math.random() returns a random number between 0 (inclusive) and 1 (exclusive):<p>
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
document.getElementById("demo").innerHTML = Math.random();
}
</script>
</body>

Math.random() returns a random number between 0 (inclusive) and 1 (exclusive):

Unlike other global objects, Math has no constructor, nor is a constructor. All the properties and methods of Math are static and can be called by using Math as an object without creating it. In other words, no methods have to create a Math object first.