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CODE EXAMPLE FOR JAVASCRIPT

javascript random

/*
`Math.random` returns a pseudo-random number between 0 and 1.
a pseudo-random number is generated by an algorithm, it is not
technically actually random, but for all intents and purposes
it is random enough that no human should be able to find a
pattern
*/

Math.random(); // -> Decimal number between 0 and 1

Math.round(Math.random()); // -> 0 or 1

Math.random() * max; // -> Decimal number between 0 and max

Math.floor(Math.random() * max); // -> Whole number between 0 and max - 1

Math.round(Math.random() * max); // -> Whole number between 0 and max

Math.ceil(Math.random() * max); // -> Whole number between 1 and max

(Math.random() * (max - min)) + min; // Decimal number between min and max

Math.floor((Math.random() * (max - min)) + min); // Whole number between min and max - 1

Math.round((Math.random() * (max - min)) + min); // Whole number between min and max

Math.ceil((Math.random() * (max - min)) + min); // Whole number between min + 1 and max

Math.random() * Math.random(); // Decimal number between 0 and 1 with a tendency to be smaller

1 - Math.random() * Math.random(); // Decimal number between 0 and 1 with a tendency to be larger
Source by developer.mozilla.org #
 
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Tagged: #javascript #random
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