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JQuery dynamic function based ajax requests – Jquery ajax

I am making a function that posts AJAX requests.

I need to call it from multiple pages, how can I make a callback method inside the done method? Or even a second callback for beforesend events.

function post_ajax(URL,CONTENT_TYPE,$RENDERING_DIV,PARAMS={},callback_function){
   $.post(URL, PARAMS, null, CONTENT_TYPE)
      .done(data => {
          callback_function()
      }).fail(() => alert('an error occurred'));
}

//function call
$('#mybtn').click(()=>{
    post_ajax('a_script.php','html','#div_res',{},callback_function())
})
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2

Answers


  1. 0

    your declaration is correct (expet sending result data to callback), the problem is in the call manner of the callback function

    you need to pass a function declaration (not execution) or, just implement that function directly , by example :

    first you have to pass the result as parameter to your callback in the done

    .done(data => {
        callback_function(data) // <---- here pass data
    }).fail(() => alert('an error occurred')

    then in the function event call :

    //function call
$('#mybtn').click(()=>{
    post_ajax('a_script.php','html','#div_res',{},(data) => {
        console.log(data);
        //some stuff here manipulating data 
    });
})
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  2. 0

    Here is an example of callback:

    function post_ajax(URL, CONTENT_TYPE, $RENDERING_DIV, PARAMS={}, callback_function) {
    $.post(URL, PARAMS, null, CONTENT_TYPE)
    .done(data => {
        if (typeof callback_function === 'function') {
            callback_function(data);
        }
    })
    .fail(() => alert('an error occurred'));
}

    And now you can call it:

    $('#mybtn').click(() => {
    post_ajax('a_script.php', 'html', '#div_res',{}, (data) => { 
        console.log(data);
        alert('You are here'); 
    });

})
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