Random example of random function that generates random numbers in js

JavaScript Math.random() built-in function

random function return value

Returns a pseudorandom number between 0 and 1, possibly 0 but always less than 1, [0,1)

random function example

//return random number

document.write(Math.random());

//Return a random number from 10-20

document.write(Math.random()*(20-10)+10);

//The formula that returns a random number in the specified range (between mn)

document.write(Math.random()*(nm)+m);

Based on time, random numbers can also be generated

Copy the code code as follows:

var now=new Date();

var number = now.getSeconds(); //This will generate an integer from 0 to 59 based on the current time.

var now=new Date();

var number = now.getSeconds()%43; //This will generate an integer from 0 to 42 based on the current time.