How can I stop “property does not exist on type JQuery” syntax errors when using Typescript?

Question

I am only using one line of jQuery in my application:

$(\"div.printArea\").printArea();

But this is giving me a Typescript error:

Answer 1

You could cast it to or extend the jquery typing to add your own method.

 ($("div.printArea")).printArea();

//Or add your own custom methods (Assuming this is added by yourself as a part of custom plugin)

interface JQuery {
    printArea():void;
}