Wednesday, 28 March 2018

TypeScript - Importing jQuery TypeScript Definitions (d.ts) for Visual Studio 2017

TypeScript is building in popularity and JQuery is remains one of the most popular JavaScript frameworks. Consequently you will typically want to use them together in the same project at one stage or another.
If you do want to use JQuery within your TypeScript files in Visual Studio 2017, you need a "DefinitelyTyped" definition specifically for jQuery. This will allow Visual Studio to correctly recognise jQuery objects when validating and compiling (or transpiling based on your preferred terminology).


To do this, just download the TypeScript definitions (d.ts) for jQuery through the Nuget Package Manager (npm) UI or with the Nuget package manager console, use the following command:

Install-Package jquery.TypeScript.DefinitelyTyped

Now the typescript compiler will recognise your jQuery calls:


DDK

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