make select option selected javascript
document.getElementById('personlist').getElementsByTagName('option')[11].selected = 'selected'make select option selected javascript
document.getElementById('personlist').getElementsByTagName('option')[11].selected = 'selected'get index of selected option javascript
$("#sel").attr("selectedIndex")
// or
$("#sel")[0].selectedIndex
//or
$(this).prop('selectedIndex')js select option value when selected
(function() {
// get references to select list and display text box
var sel = document.getElementById('scripts');
var el = document.getElementById('display');
function getSelectedOption(sel) {
var opt;
for ( var i = 0, len = sel.options.length; i < len; i++ ) {
opt = sel.options[i];
if ( opt.selected === true ) {
break;
}
}
return opt;
}
// assign onclick handlers to the buttons
document.getElementById('showVal').onclick = function () {
el.value = sel.value;
}
document.getElementById('showTxt').onclick = function () {
// access text property of selected option
el.value = sel.options[sel.selectedIndex].text;
}
document.getElementById('doLoop').onclick = function () {
var opt = getSelectedOption(sel);
el.value = opt.value;
}
}());
// immediate function to preserve global namespaceCopyright © 2021 Codeinu
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