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Groups > comp.lang.javascript > #33586

Re: Find object in array

From Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups comp.lang.javascript
Subject Re: Find object in array
Date 2017-07-17 20:06 +0200
Organization PointedEars Software (PES)
Message-ID <3355443.kQq0lBPeGt@PointedEars.de> (permalink)
References <Ca-dndZsZ7OrtvbEnZ2dnUU7-e3NnZ2d@westnet.com.au> <okfajg$fug$1@news.albasani.net> <okim6r$1849$1@gioia.aioe.org>

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JR wrote:

> Martin Honnen wrote:
>> If you have an array "a" and want to find items meeting a specific
>> condition then you can use
>>    a.filter(o => o.id == 1)
>> to get an array of those objects meeting the filter condition.
>> 
>> var a = [{id: 1, data: 'foo'}, {id: 2, data: 'bar'}, {id:1, data:
>> 'baz'}]; a.filter(o => o.id == 1)
> 
> Great!
> 
> Another possibility is the find() method [1]:
> 
> a.find(el => el.id === 1);
> 
> [1]
> <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find>

In contrast to .filter(), .find() does not return a reference to a new Array 
instance of matching elements (here: object references), but only the first 
matching element.

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PointedEars
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Thread

Find object in array Andrew Poulos <ap_prog@hotmail.com> - 2017-07-16 19:00 +1000
  Re: Find object in array Martin Honnen <martin.honnen@gmx.de> - 2017-07-16 11:11 +0200
    Re: Find object in array JR <jrfaqcom@gmail.com> - 2017-07-17 12:47 -0300
      Re: Find object in array Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-07-17 20:06 +0200
  Re: Find object in array Andrew Poulos <ap_prog@hotmail.com> - 2017-07-16 19:14 +1000
    Re: Find object in array Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2017-07-17 01:30 +0200
  Re: Find object in array Dr J R Stockton <J.R.Stockton@physics.org> - 2017-07-16 15:13 -0700
    Re: Find object in array Andrew Poulos <ap_prog@hotmail.com> - 2017-07-17 14:49 +1000
      Re: Find object in array "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2017-07-17 13:53 +0200
        Re: Find object in array Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-07-17 14:29 +0100
  Re: Find object in array JR <jrfaqcom@gmail.com> - 2017-07-18 13:02 -0300

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