The world’s easiest, most powerful random function.

Rando.js helps JavaScript developers code randomness more simply, readably, and securely. Whether you need to find a random int/float between two numbers, pick a random value from an array, choose a random element from your jQuery object, grab a character from a string, toss a coin, or do anything of the like while even preventing repetitions, we’ve got you covered at a **cryptographically strong** level. The best part? Our library is extremely lightweight and developer friendly- which means it won’t take a toll on your project, and it’s uber-simple to implement.

**Step 1:** Paste the following script tag into the head of your HTML document:

```
<script src="https://randojs.com/2.0.0.js"></script>
```

Or, use npm:

```
//Install:
npm i @nastyox/rando.js
//Then, paste this at the top of your JavaScript file:
const {rando, randoSequence} = require('@nastyox/rando.js');
//Note: If your project is a module, you can paste this in your JavaScript file instead:
import {rando, randoSequence} from '@nastyox/rando.js';
```

**Step 2:** Use any of the commands explained at https://randojs.com/ however you like.

```
rando() //a floating-point number between 0 and 1 (could be exactly 0, but never exactly 1)
rando(5) //an integer between 0 and 5 (could be 0 or 5)
rando(5, 10) //a random integer between 5 and 10 (could be 5 or 10)
rando(5, "float") //a floating-point number between 0 and 5 (could be exactly 0, but never exactly 5)
rando(5, 10, "float") //a floating-point number between 5 and 10 (could be exactly 5, but never exactly 10)
rando(true, false) //either true or false
rando(["a", "b"]) //{index:..., value:...} object representing a value of the provided array OR false if array is empty
rando({a: 1, b: 2}) //{key:..., value:...} object representing a property of the provided object OR false if object has no properties
rando($("div")) //{index:..., value:...} object representing a jQuery element from the provided jQuery element set OR false if the provided jQuery element set does not contain any elements.
rando("Gee willikers!") //a character from the provided string OR false if the string is empty. Reoccurring characters will naturally form a more likely return value
rando(null) //ANY invalid arguments return false
```

```
randoSequence(5) //an array of integers from 0 through 5 in random order
randoSequence(5, 10) //an array of integers from 5 through 10 in random order
randoSequence(["a", "b"]) //an array of {index:..., value:...} objects representing the values of the provided array in random order
randoSequence({a: 1, b: 2}) //an array of {key:..., value:...} objects representing the properties of the provided object in random order
randoSequence($("div")) //an array of {index:..., value:...} objects representing all jQuery elements from the provided jQuery element set in random order.
randoSequence("Good gravy!") //an array of the characters of the provided string in random order
randoSequence(null) //ANY invalid arguments return false
```

**Author:** nastyox

**Demo:** https://randojs.com/

**Source Code:** https://github.com/nastyox/Rando.js

#javascript

4.65 GEEK