7 JavaScript One-Liners that you should know

Today we will share the 7 useful JavaScript One-Liners that you should know.

Checkout more articles on JavaScript

• Encode and decode strings with base64
• Remove all whitespace from a string in JavaScript
• Truncate string and add ellipsis in JavaScript
• Calculate age in years using JavaScript

7 JavaScript One-Liners

1. Check if the current user has touch events supported
2. Copy text to clipboard
3. Reverse a string
4. Check if the current tab is in view/focus
5. Scroll to top of the page
6. Generate a random string
7. Check if the current user is on an Apple device

1. Check if the current user has touch events supported

Use the following function to check the touch support.

const isTouchSupported = () => ('ontouchstart' in window || window.DocumentTouch && document instanceof window.DocumentTouch);

isTouchSupported(); // Output: true/false
// It will return true if touch events are supported, false if not.

2. Copy text to clipboard

Use the `navigator` to copy text to the clipboard.

Suggested article: How to copy text to the clipboard using JavaScript

const copyTextToClipboard = async text => await navigator.clipboard.writeText(text);

3. Reverse a string

Use the single line of code using `split()`, `reverse()` & `join()` methods to reverse a string.

const reverseStr = str => str.split('').reverse().join('');

reverseStr(“Clue Mediator”); // Output: rotaideM eulC

4. Check if the current tab is in view/focus

We can check if the current tab is in view/focus by using the `document.hidden` property.

const isBrowserTabInView = () => document.hidden;

isBrowserTabInView(); // Output: true/false
// It’s returns true or false depending on if the tab is in view/focus.

5. Scroll to top of the page

Use the `window.scrollTo()` method to change the scroll position.

Suggested article: Animated sticky header on scroll using JavaScript

const scrollToTop = () => window.scrollTo(0, 0);

scrollToTop();
// It will scroll the browser to the top of the page.

6. Generate a random string

Using the `Math.random()`, we can generate a random string.

Suggested article: Generate a random password using JavaScript

const getRandomStr = () => Math.random().toString(36).slice(2);

getRandomStr(); // Output: zgtgfqialz

7. Check if the current user is on an Apple device

We can use `navigator.platform` to check if the current user is on an Apple device.

const isAppleDevice = /Mac|iPod|iPhone|iPad/.test(navigator.platform);

console.log(isAppleDevice); // Output: true/false
// It will return true if user is on an Apple device

I hope you find this article helpful.
Thank you for reading. Happy Coding..!! 🙂