jquery check click on checkbox code example

Example 1: How do I check whether a checkbox is checked in jQuery?

$('#' + id).is(":checked")

Example 2: checkbox click event jquery

$('input[type="checkbox"]').click(function(){
  if($(this).is(":checked")){
    //input element where you put value
    $("#isClicked").val("Yes");
    // console.log($("#isClicked").val());              
  }
  else if($(this).is(":not(:checked)")){
    $("#isClicked").val("");
    //  console.log( $("#isClicked").val());
  }
});