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From: "Christoph M. Becker" <cmbecker69@arcor.de>
Newsgroups: comp.lang.javascript
Subject: Re: get set value in array of objects
Date: Tue, 12 Jun 2018 17:12:02 +0200
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On 12.06.2018 at 02:50, Andrew Poulos wrote:

> Say I have an array like this
> 
> var objArray = [
>     { id:0, name:'Jonah',   otherProp:321 },
>     { id:1, name:'Andrew',  otherProp:648 },
>     { id:2, name:'Another', otherProp:850 },
>     { id:3, name:'Quite',   otherProp:146 },
>     { id:4, name:'Mary',    otherProp:984 }
> ];
> 
> except that the objects have many more properties and the array has many
> more elements.
> 
> 
> To get, say the 'name' value for the object with an id = 3 I'm using:
> 
> var val = objArray.find(function(obj) {
>   return (obj.id === 3 ? obj.name : false);
> });
> 
> 
> And to set the 'name' value for the object with an id = 3 I'm using:
> 
> var ind = objArray.findIndex(function(obj) {
>   return obj.id === 3;
> });
> 
> objArray[ind]['name'] = "Fred";
> 
> 
> It works but I'm wondering if someone could show a "better" way.

If you're doing the lookup mostly by ID, consider to use some kind of
map instead.  For the given example you could even do:

  objArray[3].name

to get the name, and

  objArray[3].name = "Fred"

to set it.

-- 
Christoph M. Becker