Node.cloneNode returns the wrong type

[kkapsner]

Node.cloneNode should return the type of "this". Therefore this line
https://github.com/Microsoft/TypeScript/blob/93abebc04af5d443a930ad84258cf2d6101d8513/lib/lib.es6.d.ts#L14166

should be
cloneNode(deep?: boolean): this;

[divyamamgai]

Can I take this up as a starting point? Seems straight forward if the issue creator is correct about the change.

[mhegazy]

PRs welcomed. You can find more information about contributing lib.d.ts fixes at https://github.com/Microsoft/TypeScript/blob/master/CONTRIBUTING.md#contributing-libdts-fixes.

[mhegazy]

One thing to note, we do not want to add cloneNode(deep?: boolean): this as this will turn all HTMLElement* interfaces into generic interfaces and increase the cost of checking the standard library. instead we can update the generator to emit a cloneNode for every element to return the right type. see microsoft/TypeScript-DOM-lib-generator#166 for guidance.

[HolgerJeromin]

duplicate of the older ref #283

[typescript-bot]

Automatically closing this issue for housekeeping purposes. The issue labels indicate that it is unactionable at the moment or has already been addressed.