Add random
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README.md
14
README.md
@ -8,16 +8,26 @@ Simple functional functions common to any development in Typescript or JavaScrip
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- **uniqValuesArray**: Creates a duplicate-free version of an array.
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- **cloneJSON**: Clone JSON.
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- **updateJSON**: Returns a JSON with an updated value.
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- **getRandom**: Returns a random number from a range, with an optional number of decimal places.
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## Example
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```typescript
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import * as fn from 'fnTools'
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```javascript
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import * as fn from 'fnTools.js';
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fn.getRandom(0, 6);
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// 2
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fn.range(4);
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// [0, 1, 2, 3, 4]
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```
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## CDN
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```html
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<script type="module" src="https://cdn.jsdelivr.net/gh/tanrax/fn-js/dist/fnTools.min.js"></script>
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```
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## Compile
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Install Typescript
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26
dist/fnTools.js
vendored
26
dist/fnTools.js
vendored
@ -1,7 +1,7 @@
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define("fnTools", ["require", "exports"], function (require, exports) {
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.cloneJSON = exports.uniqValuesArray = exports.updateJSON = exports.range = exports.dec = exports.inc = void 0;
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exports.getRandom = exports.cloneJSON = exports.uniqValuesArray = exports.updateJSON = exports.range = exports.dec = exports.inc = void 0;
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/**
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* Increase the value of a `number`.
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*
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@ -16,7 +16,7 @@ define("fnTools", ["require", "exports"], function (require, exports) {
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* inc(5, 3)
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* // => 8
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*
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* dec(7.3)
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* inc(7.3)
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* // => 8.3
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*
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*/
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@ -130,4 +130,26 @@ define("fnTools", ["require", "exports"], function (require, exports) {
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return JSON.parse(JSON.stringify(json));
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}
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exports.cloneJSON = cloneJSON;
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/**
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* Return random number.
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*
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* @param {number} min - Minimum number. It is inclusive.
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* @param {number} max - Maximum number. It is inclusive.
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* @param {number} decimals - Number of decimals. Default 0.
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* @return {number}
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* @example
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*
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* getRandom(0, 4)
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* // => 3 (Maybe)
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*
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* getRandom(0, 10, 2)
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* // => 8.31 (Maybe)
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*
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*/
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function getRandom(min, max, decimals = 0) {
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const minRandom = Math.ceil(min);
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const maxRandom = Math.floor(max);
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return (Math.random() * (maxRandom - minRandom + 1) + minRandom).toFixed(decimals);
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}
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exports.getRandom = getRandom;
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});
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@ -132,4 +132,27 @@ export function uniqValuesArray(array: any[]): any[] {
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*/
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export function cloneJSON(json: JSON): JSON {
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return JSON.parse(JSON.stringify(json));
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}
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/**
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* Return random number.
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*
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* @param {number} min - Minimum number. It is inclusive.
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* @param {number} max - Maximum number. It is inclusive.
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* @param {number} decimals - Number of decimals. Default 0.
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* @return {number}
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* @example
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*
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* getRandom(0, 4)
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* // => 3 (Maybe)
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*
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* getRandom(0, 10, 2)
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* // => 8.31 (Maybe)
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*
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*/
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export function getRandom(min, max, decimals=0) {
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const minRandom = Math.ceil(min);
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const maxRandom = Math.floor(max);
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return (Math.random() * (maxRandom - minRandom + 1) + minRandom).toFixed(decimals);
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}
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