In this Article we will go through how to check if a date occurs in the current year 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 isCurrentYear = (date) => date.getUTCFullYear() === new Date().getUTCFullYear();

In this Article we will go through how to check if a flat array has duplicate values 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 hasDuplicateValues = arr => new Set(arr).size !== arr.length;

In this Article we will go through how to check if a given integer is a prime number 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 isPrime = num => (num > 1) && Array(Math.floor(Math.sqrt(num)) - 1).fill(0).map((_, i) => i + 2).every(i => num % i !== 0);

In this Article we will go through how to check if a number is a power of 2 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 isPowerOfTwo = number => (number & (number - 1)) === 0;

In this Article we will go through how to check if a number is even 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 isEven = number => number % 2 === 0;

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}`;

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, '"');

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(' ');

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;

In this Article we will go through how to strip ansi codes from 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 stripAnsiCodes = str => str.replace(/[\u001b\u009b][[()#;?]*(?:[0-9]{1,4}(?:;[0-9]{0,4})*)?[0-9A-ORZcf-nqry=><]/g, '');