Tips for integrating Typescript Definition files with Visual Studio 2017

I have a challenge with my ASP.NET Core 2.0 application where I am attempting to incorporate TypeScript and jQuery. While TypeScript integration has been successful, I am facing issues with jQuery as it does not provide me with intellisense. Despite trying various methods, including adding the definition file from DefinitelyTyped nuget package or using NPM packages "jquery" and "jquery-ts", none of them seem to work effectively.

Interestingly, even manually adding the definition file from another project has proven to be tedious, especially when updates are required. So, I am left wondering what is the correct approach to ensure that TS definition files for libraries function properly in my project. It might be relevant to note that Gulp is being utilized in this project.

typescriptvisual-studio-2017intellisense

Answer №1

My approach to importing type definitions involves utilizing NPM in conjunction with a package.json file.

By executing npm install within your project folder, you can fetch the jQuery types (as well as jQuery itself) and store them in the node_modules directory. If necessary, you can employ a Gulp task to transfer specific files from node_modules to your public folder—such as when acquiring jQuery through NPM.

{
    "name": "your-project",
    "private": true,
    "devDependencies": {
      "@types/jquery": "^3.2.16"
    },
    "dependencies": {
      "jquery": "^3.2.1"
    }
}

NPM serves as the primary method for obtaining types, with all Definitely Typed types residing within the `@types` organization.

Visual Studio now integrates smoothly with NPM.

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