Filter Array if object have key false

Question

Hi there I'm having small problem, I'm filtering my json on objects but actually as You will guess its does not work could you tell me what I am doing wrong ?

global.selection.Data.Options.filter(function (optionItem) {
return optionItem.hidden === false  })

Json :

options : [0 : {name: "some name", hidden:false}]

`return optionItem.hidden === false`, its not a string in the json — Sajal, Sep 01 '17 at 11:55

score 1 · Answer 1 · answered Sep 01 '17 at 11:55

1

You are doing a type-specific comparison with === against string 'false', but you actually have a primitive boolean false in your array.

Match against a primitive boolean instead (hidden === false).

answered Sep 01 '17 at 11:55

jlaitio

1,878
12
13

Actually I was Having === false but didint work also i had this as a string cuz I was even trying the stiuped things – Okami Okami Sep 01 '17 at 12:00
Or just `!optionItem.hidden`. – Cerbrus Sep 01 '17 at 12:03
That would match anything "falsey" (such as `undefined`, `null`, `0`, `''`), which may or may not be wanted behavior. – jlaitio Sep 01 '17 at 12:09

score 0 · Answer 2 · answered Sep 01 '17 at 12:02

0

Try doing either optionItem.hidden == false or optionItem.hidden === false. As 'false' is a non-empty string hence it is truthy in javascript.

answered Sep 01 '17 at 12:02

KalyanLahkar

835
8
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Or just `!optionItem.hidden`. – Cerbrus Sep 01 '17 at 12:03

Filter Array if object have key false

2 Answers2