change value jquery code example

Example 1: how to get a value using jquery

//for imput field given in HTML

<input type="text" id="myid" class="myclass" >
  
// Using ID to find value
  
$("#myid").val();

// Using Class to find value

$(".myclass").val();

Example 2: jquery onchange input value

$("input").change(function(){
  alert("The text has been changed.");
});

Example 3: value change event jquery

$("#input").change(function(){
  alert("The text has been changed.");
});

Example 4: jquery change value

$('#opacity').val(100);
$('#opacity').val("hello");

Example 5: jquery set input value

$("button").click(function(){
  $("input:text").val("Glenn Quagmire");
 })