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JavaScript AJAX Basics (retiring) jQuery and AJAX Handling Errors

Posted by Adam Parish
Adam Parish
27,797 Points

jqHR vs jqXHR??

I was doing the code challenges after this and found that I had to use jqHR to get it too pass. Why is this? Updated?

2 Answers

Gerson Koenig
Gerson Koenig
8,061 Points
Gerson Koenig
Gerson Koenig
8,061 Points

While the instructions for step 2 says to use name jqXHR for the parameter in your callback function for the fail event, I found it accepted whatever name I gave it. Which makes sense, since you could declare that variable to be whatever you want when working in javascript. In step 3, you need to use the same variable name as you did setting up the function - otherwise you're calling a null object.

these will both work:

fail(function(jqHR){alert(jqHR.statusText);}

fail(function(jqXHR){alert(jqXHR.statusText);}

but the following won't:

fail(function(jqHR){alert(jqXHR.statusText);}

Ira Bradley
Ira Bradley
12,976 Points
Ira Bradley
Ira Bradley
12,976 Points

This wasn't the case for me. In the AJAX documentation I can't find any reference to jqHR.

aviralkulshreshtha
aviralkulshreshtha
6,561 Points

because though jqXHR is an object, jqHR is a name that you can give that object. Analogous to how there is a human, so it's not wrong to refer to it as a human, but then you can also name it Jack.