Calling a function from typescript

Question

In an object, I need to call out to a function on that page that is not part of the typescript file. As typescript doesn't know about it, it fails to compile.

How do I tell typescript that the call is fine and to let it through? function name is MY_PERSONAL_FUNCTION in this example

    var dataSource = new kendo.data.DataSource({
        error: (e) => { MY_PERSONAL_FUNCTION (e); },

I have included it, but MY_PERSONAL_FUNCTION is my function. Typescript fails on MY_PERSONAL_FUNCTION as it is not defined. — Ian Vink
– Ian Vink, Commented May 23, 2018 at 17:36
if you have written this file else where, you can export the function from your js file and import it in your typescript class. — Vignesh.N
– Vignesh.N, Commented May 23, 2018 at 17:38
How do I just ignore the typescript error. This is a function that is on the page that is added by another project magically. — Ian Vink
– Ian Vink, Commented May 23, 2018 at 17:40

Daniel Gimenez · Accepted Answer · 2018-05-23 17:53:15Z

1

If you are going for quick and dirty, you can just add declare function to the top of your script. This will tell TypeScript the function has been created somewhere else.

declare function MY_PERSONAL_FUNCTION(e: any);

var dataSource = new kendo.data.DataSource({
    error: (e) => { MY_PERSONAL_FUNCTION (e); },

answered May 23, 2018 at 17:53

Daniel Gimenez

21.1k4 gold badges60 silver badges78 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Calling a function from typescript

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related