How to create random numbers in JS?

JavaScript: How to create random numbers in JS?

To create random numbers in JS you should use Math.random(). Here are some examples:

By default (with no arguments to the method) it will give you a random number between 0 and 1.

To get a random number in JS between two values, do it like this:

  1.         // from 0 and 50:
  2.         val rand_num_from_0_to_50 = Math.random() * 50; // 1.275829481749
  3.         // as int:
  4.         val rand_num_from_0_to_50_as_int =Math.floor( Math.random() * 50); // 1
  5.  
  6.         // from 1 and 50:
  7.         val rand_num_from_1_to_50 = (Math.random() * 50 )+ 1; // 4.2756284718471
  8.         // as integer
  9.         val rand_num_from_1_to_50_as_int = Math.floor( (Math.random() * 50 )+ 1); // 4

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I am a 29 year old backend web developer from London, mostly focusing on PHP and Laravel lately. This (webdevetc.com) is my blog where I write about some web development topics (PHP, Laravel, Javascript, and some server stuff). contact me here.



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