The object "KnockoutExtenders" does not have a property called "name", resulting in error code TS2339

I'm attempting to use knockout in TypeScript and encountering a similar issue as mentioned here. However, I am unable to locate the necessary typings to resolve this problem. The specific code line causing trouble is:

ko.extenders.name = function (target : string) {

The error message received is:

error TS2339: Property 'name' does not exist on type 'KnockoutExtenders'.

What steps should I take to address this issue?

Furthermore, other instances of errors with the same nature in my code include:

error TS2339: Property 'number' does not exist on type 'KnockoutExtenders'.

and

error TS2339: Property 'modal' does not exist on type 'JQuery<HTMLElement>'.

In particular reference to the code line:

$('#signup-dialog').modal('show');

Answer №1

It appears that the .modal() function originated from Bootstrap. Consequently, I needed to add bootstrap typings by running

npm install --save-dev @types/bootstrap
.

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