ts-r
  • Error
  • Reported by the type checker

TS2592

Cannot find name '{0}'. Do you need to install type definitions for jQuery? Try `npm i --save-dev @types/jquery` and then add 'jquery' to the types field in your tsconfig.

jQuery's $ or jQuery global is used without its type definitions. Install @types/jquery and add "jquery" to the types option.

What it means

The name is jQuery's global ($ or jQuery), and no jQuery type definitions are loaded.

Example

index.ts
$(".item");
export {};
ts-r-check -p tsconfig.json --pretty false ts-r output
index.ts(1,1): error TS2592: Cannot find name '$'. Do you need to install type definitions for jQuery? Try `npm i --save-dev @types/jquery` and then add 'jquery' to the types field in your tsconfig.

Recorded by node scripts/verify-examples.mjs with ts-r built from commit 6deaf01. The example uses the default tsconfig: strict, target: es2022, module: esnext, moduleResolution: bundler.

How to fix

  • Install the type definitions: npm i --save-dev @types/jquery.
  • If tsconfig.json sets types, add "jquery" to it.
  • Or import jQuery as a module instead of relying on the global.