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JQuery - Add Elements in JQuery of JQuery
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Add New HTML Content

We will look at four jQuery methods that are used to add new content:

  • append() - Inserts content at the end of the selected elements
  • prepend() - Inserts content at the beginning of the selected elements
  • after() - Inserts content after the selected elements
  • before() - Inserts content before the selected elements

jQuery Manipulating CSS

jQuery has several methods for CSS manipulation. We will look at the following methods:

  • addClass() - Adds one or more classes to the selected elements
  • removeClass() - Removes one or more classes from the selected elements
  • toggleClass() - Toggles between adding/removing classes from the selected elements
  • css() - Sets or returns the style attribute

jQuery Dimension Methods

jQuery has several important methods for working with dimensions:

  • width()
  • height()
  • innerWidth()
  • innerHeight()
  • outerWidth()
  • outerHeight()
example
<!DOCTYPE html>
    <html lang="en-US">
    <head>
        <meta charset="UTF-8">
        <title>internal</title>
        <script   src="https://code.jquery.com/jquery-3.4.1.min.js"   integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo="   crossorigin="anonymous"></script>
        <script>
            $(document).ready(function(){
                $("#doit").click(function(){
                   var newmember1= $("<div></div>");
                    newmember1.html(5);
                    var newmember2=$("<div></div>");
                    newmember2.html(6);
                    var newmember3="<div>7</div>";//direct
                    var newmember4=document.createElement("div");//javascript
                    newmember4.innerHTML=8;
                    
                    $("#no").append(newmember1);
                    $("#no").prepend(newmember2);
                    $("#no2").after(newmember3);
                    $("#no2").before(newmember4);
                });
                
                $("#remove").click(function(){
                    
                    $("#no").remove();
                });
                
                  $("#empty").click(function(){
                    
                    $("#no").empty();
                });
                
                
                $("#addclass1").click(function(){
                    
                    $(".addclasses").addClass("addclasses1");
                });
                
                 
                $("#removeclasses").click(function(){
                    
                    $(".addclasses").removeClass("addclasses1");
                    console.log($(".addclasses").height());
                    console.log($(".addclasses").width());
                });
                
                
            });
        </script>
        <style>
            .addclasses1{
             background-color: red;   
            }
            .addclasses{
             width: 300px;
             height: 300px;
             
            }
            
        </style>
    </head>
    <body>
        <div id="no">
            <div>1</div>
            <div>2</div>
        </div>
        <div id="no2">
            <div>3</div>
            <div>4</div>
        </div>
        <button id="doit">do it</button>
        <button id="remove">remove</button>
        <button id="empty">empty</button>
        <button id="addclass1">addclass</button>
        <button id="removeclasses">remove</button>
        <div class="addclasses">element</div>
        
    </body>
</html>
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