Accessing variables outside ajax

JavaScript
1

I have this code and i realize that i cant have access outside from ajax except I globalize the data variable. Eg

$.ajax({
                url: 'includes/ajax_chart.php',
                data:{present:'present'},
                type: 'POST',
                dataType: 'JSON',
                success: function (data) {
                     if(!data.error){
                        b=data;                      
                                             
                     }   
                    }
                    
            });

So we must work with global variables and data or there is another way to keep these variables inside the function that contains Ajax?

2

that will fail if the AJAX call is not done.

Promises. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise

1 Like
3

you can use the when
https://api.jquery.com/jquery.when/
or (i don’t like this method) you can use global variable and call the ajax with async: false

1 Like
4

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