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JavaScript AJAX Basics AJAX Concepts Finish the AJAX Request

William Tunna
William Tunna
2,946 Points
Posted by William Tunna
William Tunna
2,946 Points

requesting a XMLHttpRequest and assigning it to a variable with 'let'

When I'm assigning a variable to a new XMLHttpRequest, I get a syntax error if I were to use this for example:

let request = new XMLHttpRequest;

However, when I corrected this to:

var request = new XMLHttpRequest;

Everything worked fine. How come you can't use let to assign a variable in this case?

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

This course was likely developed before ES2015 syntax was in common use.

If all of the video examples in a course use "var", then stick with 'var" for the quizzes and challenges.