Internet Explorer has been known to remove option tags that are added dynamically through

Question

Internet Explorer has been known to remove option tags that are added dynamically through

I've come across a code snippet that works perfectly in all browsers except IE. Here it is:

var array = eval( '(' + xmlHttp.responseText + ')' );
var html = '';

for(var key in array)
{
    html += '<option value="' + key  + '">' +array[key] + '</option>';
}
alert(html);
document.getElementById('countries').innerHTML = html;

The problem seems to be with the .innerHTML property. While the alert displays the data correctly, the innerHTML removes the tags and displays the words in a row.

Any suggestions on how to potentially resolve this issue?

javascript internet-explorer cross-browser innerhtml

Answer 1

Answer №1

One issue that is commonly encountered is the limitation of IE in using .innerHTML to set option elements within a select element.

To overcome this, it is recommended to use DOM methods for creating elements instead.

var fragment = document.createDocumentFragment();

for(var key in array) {
    var opt = fragment.appendChild(document.createElement("option"));
    opt.value = key; 
    opt.text = array[key];
}

document.getElementById('countries').appendChild(fragment);

If array is indeed an Array, it is advisable to use for loop instead of for-in loop in JavaScript.

In case you need to clear the existing options in the select before adding new ones, you can achieve this by either using .innerHTML = "" or by utilizing the following loop:

var sel = document.getElementById('countries');
while (sel.firstChild)
    sel.removeChild(firstChild);

sel.appendChild(fragment);

Answer 2

One issue that is commonly encountered is the limitation of IE in using .innerHTML to set option elements within a select element.

To overcome this, it is recommended to use DOM methods for creating elements instead.

var fragment = document.createDocumentFragment();

for(var key in array) {
    var opt = fragment.appendChild(document.createElement("option"));
    opt.value = key; 
    opt.text = array[key];
}

document.getElementById('countries').appendChild(fragment);

If array is indeed an Array, it is advisable to use for loop instead of for-in loop in JavaScript.

In case you need to clear the existing options in the select before adding new ones, you can achieve this by either using .innerHTML = "" or by utilizing the following loop:

var sel = document.getElementById('countries');
while (sel.firstChild)
    sel.removeChild(firstChild);

sel.appendChild(fragment);

Answer 3

Answer №2

let dropdown = document.getElementById('countries'); // assuming this is your <select>
for (let item in list) {
    let newOption = document.createElement('option');
    newOption.value = item;
    newOption.text = list[item];
    dropdown.appendChild(newOption);
}

Answer 4

let dropdown = document.getElementById('countries'); // assuming this is your <select>
for (let item in list) {
    let newOption = document.createElement('option');
    newOption.value = item;
    newOption.text = list[item];
    dropdown.appendChild(newOption);
}

Internet Explorer has been known to remove option tags that are added dynamically through

Answer №1

Answer №2

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