Make sure to include `jquery` in the types section of your tsconfig file

I've encountered an issue while trying to use jQuery in my Angular-TypeScript project. After installing jquery using "npm install @type/jquery", I am receiving the following error when trying to serve:

Error TS2592: Cannot find name '$'. Is it necessary to install type definitions for jQuery? You can try running npm i @types/jquery and then add jquery to the types field in your tsconfig.

How can I successfully add jquery to the types field?

Here's a snippet of my code:

let settings = {
  "async": true,
  "crossDomain": true,
  "url": "https://api.com/getSomething",
  "method": "POST",
  "headers": {
    "x-rapidapi-host": "xxx",
    "x-rapidapi-key": "xxx",
    "content-type": "xxx"
  },
  "data": {}
}

$.ajax(settings).done(function (response) {
  console.log(response);
});

Answer №1

The error message provides a clear explanation of the issue at hand. When working with TypeScript and jQuery, it's important to have the typings for jQuery installed. You can do this by running npm i @types/jquery in your project.

After installing the typings, make sure to add "jquery" to the types array in your tsconfig.app.json file within your Angular application. However, please note that the specific configuration may vary depending on your Angular version.

I would like to point out that if you are using Angular, it is recommended not to rely on jQuery unnecessarily. Angular can accomplish most tasks without the need for jQuery. Integrating an entire Angular application with jQuery might be excessive in many cases.

Answer №2

When transitioning from Angular Universal, it is important to remember to include additional configurations in tsconfig.server.json as shown below:

{
  "extends": "./tsconfig.app.json",
  "compilerOptions": {
    "outDir": "./out-tsc/server",
    "types": ["node", "jquery"]
  },
  "files": ["src/main.server.ts", "server.ts"]
}

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