Is there a way to easily identify which function argument corresponds to a calling argument in TypeScript within vscode?

Often times I find myself importing a TypeScript function into another file. This particular function takes positional arguments:

import { doThing } from "./somefile";

doThing("banana", "lemon", "apple", "grape", "cherry");

While I can hover over the doThing function to see its signature, it becomes challenging to match up the function's parameters with the actual arguments being passed in when there are multiple arguments.

For example, in a file like somefile.ts:

export const doThing = function (one, two, three, four, five) {
  // ...
};

How do I determine that the argument cherry corresponds to the parameter five?

Is there a way to view the mapping between function arguments and calling arguments in TypeScript / vscode?

Answer №1

My preferred method is to position the cursor on the argument I want to provide a hint for in the function call, then press shift + ctrl + space. For Mac users, the equivalent shortcut is shift + command + space.

(Apologies for the light theme screenshot if it's not your preference)

https://i.sstatic.net/ZZogF.png

In VSCode, this action is known as "trigger parameter hints" and you can easily look it up.

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