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JavaScript

Posted by Alexander Watts
Alexander Watts
333 Points

JavaScript promise parameters

Hello,

I do not understand why we pass arguments into the parameters of the anonymous function function(response, reject) and how we can use them to do something. So what is their meaning and what values do we pass in to replace them?

var example = new Promise(function(response, reject){
    resolve("Hello world");
});

Thanks!

1 Answer

Steven Parker
Steven Parker
243,215 Points
Steven Parker
Steven Parker
243,215 Points

The parameters in the promise callback stand for other callback functions. One of them gets called when the promise has been either resolved or rejected, as their names imply.

Have you seen the workshop on Understanding Promises in JavaScript?