Leverage variables in Ajax to retrieve the data of an HTML element

Seeking assistance in converting multiple lines into a single for loop.

var optie1 = "";
if($('#form #optie1_check').is(':checked')) {
    optie1 = $('#form #optie1_naam').val();
}
var optie2 = "";
if($('#form #optie2_check').is(':checked')) {
    optie2 = $('#form #optie2_naam').val();
}

Struggling to find relevant information online. Need help with a for loop like this:

for (let i = 0; i < 2; i++) {
    var str = "optie" + (i+1) + "_check";
    var str2 = "optie" + (i+1) + "_naam";
    if($('#form #' + str).is(':checked')) {
        opties.push($('#form #' + str2).val());
    }
}

Storing values in 'opties' array for later use, and passing it through ajax:

$.ajax({
    type: "POST",
    url: "voegOptiesToe.php",
    data: { opties: opties },
    ...
});

Answer №1

To encode a set of form elements as a string for submission, you can simply utilize the .serialize() method.

Explore here

Here is an example:

$.ajax({
    type: "POST",
    url: "addOptions.php",
    data: $('form').serialize(),
    ...
}

Answer №2

let optionsArray = new Array();
for (counter=1; counter<=2; counter++) {
    let str = "option" + counter + "_check";
    let str2 = "option" + counter + "_name";

    if($('#form #'+str).is(':checked')) {
        optionsArray.push($('#form #'+str2).val());
    }
}

Example on JSFiddle

Answer №3

let option, index=1;    
$('#form #option'+index+'_check').is(':checked').each(function(){
  option+= $('#form #option'+index+'_name').val(); 
  index++;
});

Answer №4

If you use the same name for both checkboxes, you can easily retrieve the values as an array on the server side.

Alternatively, consider this approach:

selectedValues = [];
$("#myForm input[type='checkbox']")
.filter(function(index, element){
   return $(element).is(':checked');
 })
.each(function(index, element){
   selectedValues.push($(element).val());
 })

Then, you can pass the selectedValues array in an ajax post request.

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