how to store textbox value in array c# code example

Example 1: javascript append to array

var colors=["red","white"];
colors.push("blue");//append 'blue' to colors

Example 2: how to get array values in javascript

var valueAtIndex1 = myValues[1];

Example 3: how to set dropdown value in textbox using jquery

$('#chosen_a').change(function(){
     //get the selected option's data-id value using jquery `.data()`
      var criteria_rate =  $(':selected',this).data('id'); 
     //populate the rate.
    $('.criteria_rate').val(criteria_rate);
});