In javascript, how do you call a function?

hectorsalamanca — Wed, 13 Dec 2023 14:19:24 GMT

I've written a constructor function that registers an event handler:

However, I am unable to access the created object's data property within the callback. It appears that this does not refer to the object that was created, but to another.

I also attempted to use an object method rather than an anonymous function:

function MyConstructor(data, transport) { this.data = data; transport.on('data', this.alert); } MyConstructor.prototype.alert = function() { alert(this.name); };

However, it has the same issues.

How do I get to the right object?

Re: In javascript, how do you call a function?

KenBuja — Mon, 01 May 2023 14:28:58 GMT

When JS used Dojo (before 4.18 and 3.x), using lang.hitch was the proper way to make sure that "this" retains the proper context.

In ES6, arrow function were introduced where the "this" scope is better preserved.

topic Re: In javascript, how do you call a function? in Developers Questions

In javascript, how do you call a function?

Re: In javascript, how do you call a function?