Javascript (jquery) functionality similar to linq's Where()

Question

Is it possible to do in jquery something similar to this C# example:

LoopModel = Model.Fields
                    .Where(p => p.Key < 1000 && !Model.FieldHandled.ContainsKey(p.Key) && !FieldsValid.ContainsKey(p.Key))
                    .OrderBy(p => p.Value.SortOrder).ThenBy(p => p.Value.FieldTypeID).ThenBy(p => p.Value.FieldLabel);

I can do

var fields = @Html.Raw(JsonConvert.SerializeObject(Model.Fields));

So I want to be able to select certain fields from "fields".

Thanks

Use `JLinq.js` library. It provides same `linq` functions as `C#` — Akshay, Aug 11 '15 at 15:41
@Akshay Thanks, would you like to make it an answer, so that I could mark it? — Dmitriy Reznik, Aug 11 '15 at 15:56
what is `FieldsValid` what is `FieldHandled`? instead `where` in c# you can use `filter` in js, instead `orderBy` - `sort` — Grundy, Aug 12 '15 at 08:44

James Brierley · Answer 1 · 2018-05-01T16:07:44.870

2

Use filter. No libraries required.

Here is an example from the link:

const words = ['spray', 'limit', 'elite', 'exuberant', 'destruction', 'present'];

const result = words.filter(word => word.length > 6);

console.log(result);
// expected output: Array ["exuberant", "destruction", "present"]

edited May 01 '18 at 16:07

answered Aug 12 '15 at 08:44

James Brierley

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only for new browsers :-) – Grundy Aug 12 '15 at 08:45
IE 9 is a new browser? I guess this isn't appropriate if you need to support IE 8, but I wouldn't think that would be worth it unless you're specifically targeting a userbase more likely to still be using it. – James Brierley Aug 12 '15 at 08:46
some mobile browsers also not available this :-) – Grundy Aug 12 '15 at 08:47
It shows compatibility at the bottom of that link, and there's a tab for mobile. Apparently, it's supported for all of them but I can't verify that. – James Brierley Aug 12 '15 at 08:48

score 1 · Answer 2 · edited May 23 '17 at 11:58

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I prefer Lodash or Underscore. They are widely used in various JS libs and right now I think they are the most JavaScript-ish solution. They also guarantee support for legacy browsers, having lots of performance enhancements. I think it's worth to learn them.

https://lodash.com/ http://underscorejs.org/

See the comparison here: Differences between lodash and underscore

edited May 23 '17 at 11:58

Community

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answered Aug 12 '15 at 08:45

Gábor Imre

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score 0 · Answer 3 · answered Aug 12 '15 at 08:41

0

You can use JLinq.js library. It provides same functions as C#

answered Aug 12 '15 at 08:41

Akshay

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Javascript (jquery) functionality similar to linq's Where()

3 Answers3