TypeScript Intellisense and jQuery problems

Question

I am using VS 2012 and TypeScript with jquery. I am converting an existing JS app into TS and I have the following problem :

$(window).load(function () {
//stuff
});

$(window).load got underlined and error is 'supplied parameters do not match any signature of call target'. I am using jquery 1.7.2 with this jquery.d.ts jquery ts annotations. I added the reference link on top of the file.

What am I doing wrong ?

Edit : I have got typescript installed in VS of course, and it doesn't change anything to edit the argument, it can be "window" or anything else, it keeps making the error. The definition of load() it expects is (url:string, data: any, complete: any) while in jQuery doc it's just a function..

Does it accept $(document) in place of $(window)? If so, the d.ts file must only have overloads for document, string and string/object - which means an update to the definition would be needed to allow window. — Fenton
– Fenton, Commented Dec 27, 2012 at 12:44

samjudson · Accepted Answer · 2012-12-27 12:53:44Z

2

The Typescript definition only contains the definition for 1 particular version of the load function, the one that loads html from a url http://api.jquery.com/load/. Typescript is still in alpha don't forget.

This shouldn't affect your use of Typescript, except you will continue to receive the warning.

As an alternative you could change your code to something like the following:

$(window).on("load", function() {
    /// so stuff
});

answered Dec 27, 2012 at 12:53

samjudson

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3 Comments

Rayjax Over a year ago

Thank you, I had the idea that i was the definition of another load method, but I didn't think about using on. I will do that, but for errors in TS the problem is that it doesn't compile in JS at all; is there any way to 'skip' errors which I know aren't real problems ?

Ken Smith Over a year ago

One easy way to get around errors like this is to cast the problematic object to <any>, e.g., (<any>$(window)).load(() =>{}).

Igor Brejc Over a year ago

@KenSmith $(window as any).load(() => {}) is recommended in the latest TypeScript version.

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