js filter undefined from array

GutoTrosla answered on February 7, 2022 Popularity 9/10 Helpfulness 6/10

answer js filter undefined from array

js filter undefined from array

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var arr = [1,2,,3,,-3,null,,0,,undefined,4,,4,,5,,6,,,,];


arr.filter(n => n)
// [1, 2, 3, -3, 4, 4, 5, 6]

arr.filter(Number) 
// [1, 2, 3, -3, 4, 4, 5, 6]

arr.filter(Boolean) 
// [1, 2, 3, -3, 4, 4, 5, 6]

Popularity 9/10 Helpfulness 6/10 Language javascript

Source: stackoverflow.com

Tags: filter javascript undefined

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Contributed on Feb 07 2022

GutoTrosla

0 Answers Avg Quality 2/10

js filter undefined from array

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