Sep 9, 2021 JavaScript
How to trim the file extension from a file name in JavaScript

In this Article we will go through how to trim the file extension from a file name only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const trimExt = fileName => fileName.indexOf('.') === -1 ? fileName : fileName.split('.').slice(0, -1).join('.');

Sep 9, 2021 JavaScript
How to truncate a string at full words in JavaScript

In this Article we will go through how to truncate a string at full words only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const truncate = (str, max, suffix) => str.length < max ? str : `${str.substr(0, str.substr(0, max - suffix.length).lastIndexOf(' '))}${suffix}`;

Sep 9, 2021 JavaScript
How to unescape html special characters in JavaScript

In this Article we will go through how to unescape html special characters only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const unescape = str => str.replace(/&amp;/g , '&').replace(/&lt;/g  , '<').replace(/&gt;/g  , '>').replace(/&#0*39;/g , "'").replace(/&quot;/g, '"');

Sep 9, 2021 JavaScript
How to uppercase the first character of each word in a string in JavaScript

In this Article we will go through how to uppercase the first character of each word in a string only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const uppercaseWords = str => str.split(' ').map(w => `${w.charAt(0).toUpperCase()}${w.slice(1)}`).join(' ');

Sep 9, 2021 JavaScript
How to check if a date is a weekday in JavaScript

In this Article we will go through how to check if a date is a weekday only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const isWeekday = (date = new Date()) => date.getDay() % 6 !== 0;

Sep 9, 2021 JavaScript
How to generate an array of random integers in a given range in JavaScript

In this Article we will go through how to generate an array of random integers in a given range only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const randomArrayInRange = (min, max, n) => Array.from({ length: n }, () => Math.floor(Math.random() * (max - min + 1)) + min);

Sep 9, 2021 JavaScript
How to get a random item and remove it from an array in JavaScript

In this Article we will go through how to get a random item and remove it from an array only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const randomItem = arr => arr.splice((Math.random() * arr.length) | 0, 1);

Sep 9, 2021 JavaScript
How to get a random item from an array in JavaScript

In this Article we will go through how to get a random item from an array only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const randomItem = arr => arr[(Math.random() * arr.length) | 0];

Sep 9, 2021 JavaScript
How to get random items of an array in JavaScript

In this Article we will go through how to get random items of an array only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const randomItems = (arr, count) => arr.concat().reduce((p, _, __, arr) => (p[0] < count) ? [p[0] + 1, p[1].concat(arr.splice(Math.random() * arr.length | 0, 1))] : p, [0, []])[1];

Sep 9, 2021 JavaScript
How to pick a random property of an object in JavaScript

In this Article we will go through how to pick a random property of an object only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const randomProp = obj => Object.keys(obj)[(Math.random() * Object.keys(obj).length) | 0];