JAVASCRIPT

jquery click function

$( "#target" ).click(function() {
  alert( "Handler for .click() called." );
});

jquery click event

$('#selector').on('click',function(){
    //Your code here
});                  

jquery click

<script>
$(document).ready(function(){
    $("#btn-txt").click(function(){
    	var ptext = $("#my-para").text();
        alert(ptext);
    });
});
</script>
<button type="button" id="btn-txt">Get Text Content</button>
<p id="my-para">This is a paragraph to Show jQuery text method.</p>