/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 vote147 views1 answer
Disable sonar rule in code
TypeScript
26 votes142 views2 answers
List commits in git
TypeScript
0 vote196 views1 answer
Typescript instantiate 2d array
TypeScript
0 vote161 views1 answer
How to disable piecelabel on certian charts and keep on other chartjs
TypeScript
31 votes150 views2 answers
File C:\Users\Tariqul\AppData\Roaming\npm\ng.ps1 cannot be loaded because running scripts is disabled on this system.
TypeScript
0 vote107 views1 answer
How to permit only a few values in dbms
TypeScript
0 vote181 views1 answer
Append scripts using jquery
TypeScript
21 votes163 views2 answers
Voting results 2020 live
TypeScript
0 vote184 views1 answer
Turn milliseconds to human readable string typescript
TypeScript
1 vote154 views1 answer
Ts get year from date
TypeScript