In this Article we will go through how to sort an array of items by given key 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 sortBy = (arr, k) => arr.concat().sort((a, b) => (a[k] > b[k]) ? 1 : ((a[k] < b[k]) ? -1 : 0));

In this Article we will go through how to create an empty function 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 noop = () => {};

In this Article we will go through how to identity function 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 identity = x => x;

In this Article we will go through how to memoize a function 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 memoize = fn => ((cache = {}) => arg => cache[arg] || (cache[arg] = fn(arg)))();

In this Article we will go through how to check if the touch events are supported 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 touchSupported = () => ('ontouchstart' in window || window.DocumentTouch && document instanceof window.DocumentTouch);

In this Article we will go through how to check if an element is focused 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 hasFocus = ele => (ele === document.activeElement);

In this Article we will go through how to check if user scrolls to the bottom of the page 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 isAtBottom = () => document.documentElement.clientHeight + window.scrollY >= document.documentElement.scrollHeight;

In this Article we will go through how to detect internet explorer browser only using single line of code in JavaScript.

Let's define this short function:

const isIE = !!document.documentMode;

In this Article we will go through how to check if an element is a descendant of another 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 isDescendant = (child, parent) => parent.contains(child);

In this Article we will go through how to get the position of an element relative to the 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 getPosition = ele => (r = ele.getBoundingClientRect(), { left: r.left + window.scrollX, top: r.top + window.scrollY });