/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 vote211 views1 answer
Type !important is not assignable to type 'StyleValue' ts(2322)
TypeScript
1 vote245 views1 answer
Script to see what tkinter fonts installed on system
TypeScript
18 votes212 views6 answers
Remove multiple elements from array es6
TypeScript
-1 vote236 views1 answer
Top data scientists in the world
TypeScript
0 vote199 views2 answers
Https://duckduckgo.com/?t=avast Ariana Grande (@arianagrande) • Instagram photos and videoswww.instagram.com › arianagrande 203.2m Followers, 686 Following, 4664 Posts - See Instagram photos and videos from Ariana Grande (@arianagrande)
TypeScript
5 votes182 views4 answers
Element implicitly has an 'any' type because expression of type 'string' can't be used to index type
TypeScript
5 votes189 views2 answers
Convert object object to array typescript
TypeScript
0 vote281 views1 answer
Angular material chips autocomplete example
TypeScript
1 vote214 views2 answers
No type arguments expected for interface ListAdapter
TypeScript
0 vote182 views1 answer
Module svg typescript
TypeScript