Show javascript array value in input type hidden

You need to set the value in Javascript:

document.getElementById(...).value = startTimeList[0];

Use this :

<script>
window.onload = function() {
    document.getElementsByName("startTime1")[0].value = startTimeList[0];
}
</script>

You have to set value from javascript. Something like document.getElementById (ID).value = startTimeList[0];

You execute javascript from body oload event.

You need to set the value through JavaScript itself so.

document.getElementById("startTime1").value = startTimeList[0]; 

Or JQuery

$("#startTime1").val(startTimeList[0]);

Assign "startTime1" as the id above.

You can find your element by name with:

document.getElementsByName(name)[index].value = 'new value';

OR

You should identify your element and then change the value;

1. Give your element an ID for example id="ex"
2. Get the element with JavaScript(of course once the DOM is ready) with var element = document.getElementById('ex')
3. Change the value with element.value = 'your value';

You'd need to split the array into a delimited string and then assign that string to the value of the hidden input.

Then, on postback or similar events you'd want to parse the value back into an array for use in JavaScript:

var startTimeList = [1,2,3,4,5];
var splitList = '';
for(var i = 0;  i < startTimeList.length; i++)
{
    splitList += startTimeList[i] + '|';
}

and back again:

var splitList = '2|4|6|8|';
var startTimeList = splitList.split('|');