Filter is not a Function

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- Nilom
- - Joined 26 Dec, 2019
  - 57 topics • 182 posts
- 1
- 4 Feb, 2020
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Hello!

I would like to use the javascript filter() method. Is it possible with scripting in Construct 3?

I tried it both in the editors script file and in the add script command in the events.

raids.filter(raids => raids.id === localVars.raidID1)[0].raidMembers.filter(x => x.isConfirmed)

Both times it gave an error message in the console "filter is not a function".

How can I use Javascripts filter() method?
Tagged:

array
filtering
function
javascript
object
- Ashley Construct Team Founder
- Moderator
- - Joined 21 May, 2007
  - 669 topics • 30,362 posts
- 2
- 4 Feb, 2020
- Quote
Presumably, raids is null or undefined, so you cannot use raids.filter. Make sure it's actually an array. This is just normal use of JavaScript, it has nothing to do with Construct specifically.
- Nilom
- - Joined 26 Dec, 2019
  - 57 topics • 182 posts
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- 5 Feb, 2020
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Hmmm. This is strange. raids is a global variable that I parsed AJAX data to. It should be an object.

I described in this post construct.net/en/forum/construct-3/scripting-51/parse-json-objects-return-149689 how I sat it up.

Did I do it wrong?
- Ashley Construct Team Founder
- Moderator
- - Joined 21 May, 2007
  - 669 topics • 30,362 posts
- 1
- 6 Feb, 2020
- Quote
It's hard to help without seeing more of your project, because it's probably a mistake in your JavaScript code. You could also try using the browser debugger to investigate further.
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- Magistross
- - Joined 4 Jul, 2011
  - 8 topics • 1,206 posts
- 3
- 6 Feb, 2020
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The JSON object doesn't have an exposed API yet, so you can't manipulate it in scripts. You could however ditch it altogether work solely with scripts for your JSON needs.

First load the JSON file with AJAX, then set a local or global variable to AJAX.LastData.

Inside a script, you could then parse said variable and store the object inside the runtime for later use.

runtime.myArray = JSON.parse(runtime.globalVars.json);

That new "myArray" attribute of the runtime could then be filtered using the filter() method.
- Nilom
- - Joined 26 Dec, 2019
  - 57 topics • 182 posts
- 1
- 7 Feb, 2020
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You are my hero! I will try this later. Got sick yesterday but today I feel better.

Thank you again for your help. :)