Error in VS2015 when attempting to assign a two-dimensional array in TypeScript build

I've run into some build errors in my TypeScript project in Visual Studio 2015. Despite the application working fine in the browser, I'm unable to publish it due to these errors.

export var AddedFields: Array<Array<Field>[]>[];

myGlobals.AddedFields[1][1] = new Field(newField.id, newField.label, newField.type, 0, 0);

The specific error message is:

Error TS2322 Build:Type 'Field' is not assignable to type 'Field[][]'. \Projects\angular2-systemjs-dotnet-core-master\src\TestAngular2\wwwroot\app\components\form-layout.component.ts 40 Build

Can anyone help me pinpoint where I may be going wrong?

angularmultidimensional-arraytypescript

Answer №1

When defining an array type in Typescript, you have the option to use either the Array or [] notations. However, combining both notations results in the declaration of a 4-dimensional array.

To maintain consistency, it is recommended to choose one notation. For the Array notation, the declaration would be:

export var AddedFields: Array<Array<Field>>;

Alternatively, for the [] notation, the declaration would be:

export var AddedFields: Field[][];

Answer №2

export var UpdatedFields: Array<Array<Field>>;

It appears that the structure you have written is not just an array of arrays, but rather an array of arrays of arrays of arrays (most likely).

It seems like you might just need

export var UpdatedFields: Array<Array<Field>>;

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