Sep 9, 2021 JavaScript
How to check if a url is absolute in JavaScript

In this Article we will go through how to check if a url is absolute 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 isAbsoluteUrl = url => /^[a-z][a-z0-9+.-]*:/.test(url);

Sep 9, 2021 JavaScript
How to check if two strings are anagram in JavaScript

In this Article we will go through how to check if two strings are anagram 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 areAnagram = (str1, str2) => str1.toLowerCase().split('').sort().join('') === str2.toLowerCase().split('').sort().join('');

Sep 9, 2021 JavaScript
How to convert a letter to associate emoji in JavaScript

In this Article we will go through how to convert a letter to associate emoji 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 letterToEmoji = c => String.fromCodePoint(c.toLowerCase().charCodeAt() + 127365);

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];

Sep 9, 2021 JavaScript
How to pick random lines from a text document in JavaScript

In this Article we will go through how to pick random lines from a text document 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 randomLines = (str, count) => str.split(/\r?\n/).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 generate a random sign in JavaScript

In this Article we will go through how to generate a random sign 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 randomSign = () => Math.random() >= 0.5 ? 1 : -1;

Sep 9, 2021 JavaScript
How to generate a random string from given characters in JavaScript

In this Article we will go through how to generate a random string from given 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 generateString = (length, chars) => Array(length).fill('').map((v) => chars[Math.floor(Math.random() * chars.length)]).join('');

Sep 9, 2021 JavaScript
How to generate a random string using node crypto module in JavaScript

In this Article we will go through how to generate a random string using node crypto module 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 randomStr = () => require('crypto').randomBytes(32).toString('hex');

Sep 9, 2021 JavaScript
How to generate a random string with given length in JavaScript

In this Article we will go through how to generate a random string with given length 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 generateString = length => Array(length).fill('').map((v) => Math.random().toString(36).charAt(2)).join('');

Sep 9, 2021 JavaScript
How to generate a random uuid in JavaScript

In this Article we will go through how to generate a random uuid 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 uuid = (a) => a ? (a ^ Math.random() * 16 >> a / 4).toString(16) : ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, uuid);