Declare Array of Object in typescript

Question

I am trying to declare:

type ArticleModel = {
    _id: number;
    name: string;
}

Then in my class:

public models: ArticleModel[];

Where models should be as you may have guess an array of ArticleModel.

But node_modules/webpack/node_modules/webpack-core/lib/NormalModuleMixin.js throws:

error TS2322: Type 'Object[]' is not assignable to type '{ _id: number; name: string; }[]'.
  Type 'Object' is not assignable to type '{ _id: number; name: string; }'.
    Property 'id' is missing in type 'Object'..

Any help would be appreciated.

Thanks in advance.

Don't get confused with id and _id, it's just a typo in here... — Nicolas S.
– Nicolas S., Commented Nov 7, 2017 at 18:26

Nicolas S. · Accepted Answer · 2017-11-07 18:33:37Z

7

Ok my bad, I was re-declaring the variable later as:

let models:Array<Object> = [];

Cheers

answered Nov 7, 2017 at 18:33

Nicolas S.

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Comments

Mike PG · Accepted Answer · 2018-10-05 02:58:04Z

3

if you want to instantiate your object array when you create your class, you can do this:

public models: ArticleModel[] = [];

This is in place of doing it in the class constructor.

answered Oct 5, 2018 at 2:58

Mike PG

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