/TypeScript/How to Remove undefined Values From a JavaScript Array?

How to Remove undefined Values From a JavaScript Array?

Js remove undefined from array

const a = [3,,null, false, undefined, 1];

// Remove falsey
a.filter(Boolean);
 
// Remove specific (undefined)
a.filter(e => e !== undefined);

How to Remove undefined Values From a JavaScript Array?

// ES6+
const arr = [1, undefined, 2, 3, undefined, 5];

const filteredArr = arr.filter((elem) => elem !== undefined);

console.log(filteredArr); // output: [1, 2, 3, 5]

Source: designcise.com

Similar codes

0 vote334 views1 answer
How to auto collect channel points twitch
TypeScript
3 votes314 views1 answer
Typescript req.query.query
TypeScript
0 vote305 views1 answer
Keynote Invite multiple users to make edits to the same document:
TypeScript
4 votes266 views1 answer
Typescript convert image base64 librarie
TypeScript
1 vote305 views1 answer
Error: Gradle project sync failed. Please fix your project and try again.
TypeScript
1 vote323 views1 answer
Route resource adonis middleware
TypeScript
0 vote311 views1 answer
Angular bind colspan to ts variable
TypeScript
1 vote290 views1 answer
Typescript type check only
TypeScript
0 vote302 views1 answer
Engineering adding requirements to password
TypeScript
0 vote405 views1 answer
If you meant to render a collection of children use an array instead
TypeScript