Some useful JavaScript One-Liners

After a good response from the community, I decided to post some few more JavaScript one liners, that might help you a lot. I have posted a link to my previous article of Some useful JavaScript One Liners

Clear All Cookies

const clearCookies = document.cookie.split(';').forEach((cookie) => (document.cookie = cookie.replace(/^ +/, '').replace(/=.*/, `=;expires=${new Date(0).toUTCString()};path=/`)));

Reverse a String

You can reverse a string in one line using split, join and reverse methods.

const strReverse = str => str.split('').reverse().join('');
strReverse('Shshank');
// knahshS

Generate a Random Hex

This method generates a random hex code using Math.random() and padEnd().

const hexClr = () => '#' + Math.floor(Math.random() * 0xffffff).toString(16).padEnd(6, '0');
console.log(hexClr());

Capitalise a String

Javascript doesn't have an inbuilt capitalise function, so we can use the following code of the purpose.

let str = 'follow Shshank for amazing posts';
let capStr = str.replace(/\w\S*/g, (w) => (w.replace(/^\w/, (c) => c.toUpperCase())));
console.log(capStr);

Copy to Clipboard

Easily copy any text to clipboard using navigator.clipboard.writeText.

const copy = (text) => navigator.clipboard.writeText(text);
copy('Shshank');

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Thank you.