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];

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];

In this Article we will go through how to check if a date is a weekend 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 isWeekend = (date = new Date()) => date.getDay() % 6 === 0;

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 check if a date is between two dates 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 isBetween = (date, min, max) => (date.getTime() >= min.getTime() && date.getTime() <= max.getTime());

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 date is today 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 isToday = (date) => date.toISOString().slice(0, 10) === new Date().toISOString().slice(0, 10);

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 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 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);