ProxyHandler.apply method

[icecream17]

lib Update Request

Configuration Check

My compilation target is ESNext and my lib is ESNext.

The method is in the file: lib.es2015.proxy.d.ts
[According to vscode command (Go to Definition)]

Missing / Incorrect Definition

This is about an incorrect method:
ProxyHandler.apply()
(The second argument to the Proxy constructor)

Current type definition:

    apply? (target: T, thisArg: any, argArray?: any): any;

Actual type definition:

    apply? (target: T, thisArg: any, argArray?: any[]): any;

Sample Code

<!--
  What's some code using this that should work, but doesn't?
-->

This only makes this method even stricter,
so the only effect will be to make more code fail.

Documentation Link

https://tc39.es/ecma262/#sec-proxy-object-internal-methods-and-internal-slots-call-thisargument-argumentslist
Step 7 specifically creates an array, which is passed as the third argument to the ProxyHandler.apply method.

Edit

This also applies to ProxyHandler.construct

[ExE-Boss]

This was already fixed by #35594 which will be released in TypeScript 4.2.