Reputation: 863
I have a simple selection dropdown that looks like this:
Criteria: <select name="criteriaon" id="criteriaon" onchange ="myfunction(this.form)">
<option value="1">ON</option>
<option value="0">OFF</option>
</select>
and a javascript that will pop up a confirmation box only if the user chooses OFF.
<script>
function myfunction(){
if (this.value === '0'){
confirm("Are you sure you want to turn off?");
}
}
document.getElementById('criteriaon').addEventListener('change', myfunction);
</script>
Right now what happens is that the selection will remain as OFF regardless of the user chose Yes or No. Is there a way to reset the selection to ON if the user chooses "No" on the pop-up confirmation box? Thanks in advance.
Upvotes: 0
Views: 532
Reputation: 22422
this way
ps: remove
--> onchange ="myfunction(this.form)"
because you are already using :
document.getElementById('criteriaon').addEventListener('change', myfunction);
document.getElementById('criteriaon').addEventListener('change', myfunction);
function myfunction() {
if (this.value === '0') {
if (!confirm("Are you sure you want to turn off?") ) {
this.value = '1'
}
}
}
Criteria:
<select name="criteriaon" id="criteriaon" >
<option value="1">ON</option>
<option value="0">OFF</option>
</select>
Upvotes: 2
Reputation: 1883
You can simply set the value of select to 1 by doing this.
this.value = '1';
function myfunction(){
if (this.value === '0'){
const result = confirm("Are you sure you want to turn off?");
if (!result) {
this.value = '1';
}
}
}
document.getElementById('criteriaon').addEventListener('change', myfunction);
Criteria: <select name="criteriaon" id="criteriaon" onchange="myfunction(this.form)">
<option value="1">ON</option>
<option value="0">OFF</option>
</select>
Upvotes: 2