Why is the return value of the AJAX call 'undefined'?
2053
How do I return the response from an asynchronous call?
144673
Why does this JavaScript code print "undefined" on the console?
2322
How to make an AJAX call without jQuery?
95208
The method getText() is undefined for the type String error
140826
Force JavaScript exception/error when reading an undefined object property?
63663
Passing window and undefined to an immediately invoked anonymous function. Why?
26683
Returning value that was passed into a method
82575
How do I get Mathematica to return a function call unevaluated?
99805
Referencing a JavaScript value before it is declared - can someone explain this
134603
Why doesn't a Javascript return statement work when the return value is on a new line?
152033
AJAX callback on form item generated by AJAX
27225
Extracting return value from nested callback function
107411
Return a value when using jQuery.each()?
133902
Convert js Array() to JSon object for use with JQuery .ajax
59129
Call to undefined method mysqli_stmt::get_result
27136
Reference: What is variable scope, which variables are accessible from where and what are "undefined variable" errors?
39510
JavaScript function that returns result of ajax call