The response from Ajax appears to be unclear

Question

The response from Ajax appears to be unclear

I'm attempting to assign the ajax response to a variable (let's call it _has_weekend_hollidays) in the following manner:

JS Call:

_has_weekend_hollidays = checkWeekendHollidays( _i );
console.log ( checkWeekendHollidays( _i ) );

AJAX Call

$.ajax({
    url: "./directory/ajax_check_weekend_hollidays.php",
    type: "POST",
    data: { 
            start_date: _date1,
            final_date: _date2 
          }
}).done(function (_result) {
    return ( _first_weekday == 0 || _last_weekday_id >= 6 || _result!="0" );
}).fail(function (_result) {
    console.log("ERROR:" + _resultado);
});

The AJAX response is fine but the return statement is not functioning.

Therefore, console.log displays undefined.

Any suggestions?

Thanks in advance!

javascript ajax

Answer 1

Answer №1

If you want to ensure the result is processed correctly, make sure to perform your tasks after the Ajax callback has completed.

The reason it returns as undefined is because no variables are returned by the Ajax request:

{
    url: "./directory/ajax_check_weekend_hollidays.php",
    type: "POST",
    data: { 
            start_date: _date1,
            final_date: _date2 
          }
}

This code snippet:

return ( _first_weekday == 0 || _last_weekday_id >= 6 || _result!="0" );

will not be executed until the Ajax call is marked as "Done".

If you want to track the returned data, utilize console.log within the return function.

For example:

$.ajax({
    url: "./directory/ajax_check_weekend_hollidays.php",
    type: "POST",
    data: { 
            start_date: _date1,
            final_date: _date2 
          }
}).done(function (_result) {
    console.log(_first_weekday == 0 || _last_weekday_id >= 6 || _result!="0");
    //additional actions can be performed here
}).fail(function (_result) {
    console.log("ERROR:" + _resultado);
});

Answer 2

If you want to ensure the result is processed correctly, make sure to perform your tasks after the Ajax callback has completed.

The reason it returns as undefined is because no variables are returned by the Ajax request:

{
    url: "./directory/ajax_check_weekend_hollidays.php",
    type: "POST",
    data: { 
            start_date: _date1,
            final_date: _date2 
          }
}

This code snippet:

return ( _first_weekday == 0 || _last_weekday_id >= 6 || _result!="0" );

will not be executed until the Ajax call is marked as "Done".

If you want to track the returned data, utilize console.log within the return function.

For example:

$.ajax({
    url: "./directory/ajax_check_weekend_hollidays.php",
    type: "POST",
    data: { 
            start_date: _date1,
            final_date: _date2 
          }
}).done(function (_result) {
    console.log(_first_weekday == 0 || _last_weekday_id >= 6 || _result!="0");
    //additional actions can be performed here
}).fail(function (_result) {
    console.log("ERROR:" + _resultado);
});

The response from Ajax appears to be unclear

Answer №1

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