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Steve SeebartCourses Plus Student 11,897 Points
Moving error handling out of the promise
If I had multiple network request promises in my js file and the same block of error handling code for each, is there some way to move
xhr.onerror = () => reject(Error('A network error occurred.'));
into a reusable function?
Trying to find a way that would keep me from repeating the same code in each promise.
Steven Parker225,712 Points
What if you created a function that returns a function that calls "reject" with the desired argument:
const rejector = reject => () => reject(Error('A network error occurred.'));
And then called it when needed to set up an error handler:
xhr.onerror = rejector(reject);