Question

So I have this javascript function, it sends an ajax requests to fetch a value from a php variable.

The function looks like so:

function get_cart_limit() {
$.ajax({
    url: '/w2w/ajax/',
    data: {
        _action: 'get_cart_limit'
    },
    type: 'post',
    timeout: 10000,
    success: function(output) {
        var cartlimit = output;
                    alert(cartlimit); // this gives me the correct value.
        return cartlimit;
    },
    error: function(output){

    }
});

}

When I call this function from another function like this:

var cartlimit = get_cart_limit();

my variable “cartlimit” is undefined.

So the ajax call is working, but why can’t I return the value to another function?
To early for me, my brain isn’t working properly! 🙂

Cheers!

Answer 1

If you change the scope of the cartlimit variable and disable Asynchronous request, get_cart_limit() should return the correct value

function get_cart_limit() {
var cartlimit;
$.ajax({
    url: '/w2w/ajax/',
    data: {
        _action: 'get_cart_limit'
    },
    type: 'post',
    timeout: 10000,
    async: false,
    success: function(output) {
        cartlimit = output;

    },
    error: function(output){
    }
});
return cartlimit;
}