How to zoom-in and zoom-out image using JavaScript ? – GeeksforGeeks

How to zoom-in and zoom-out double use JavaScript ? feed associate in nursing double and the task embody to increase and decrease the double size use JavaScript. use the following property to increase and decrease the image. Using Width property: information technology cost exploited to exchange the new prize to resize the width of the component .

Reading: How to zoom-in and zoom-out image using JavaScript ? – GeeksforGeeks

Syntax:

object.style.width = "auto|length|%|initial|inherit"

Approach:

• Get the selector of the required image using .getElementById(selector).
• Store the current width value in the variable using .clientWidth.
• Now change the width value to new using .style.width.
• It will proportionally increase and decrease the dimension of an image.

Example:

< html >   < head >      < title >          How to zoom-in and zoom-out          image using JavaScript ?      title>            < script src ="https://code.jquery.com/jquery-1.12.4.min.js">      script> head>   < body style = "text-align:center;" >            < h1 style = "color:green;" >           GeeksForGeeks       h1>             < h3 >          JavaScript | Increase and          Decrease image size      h3>      < hr >            < div class = "box" >                    < img src ="https://media.geeksforgeeks.org/wp-content/uploads/20190912174307/qwe1.png"               id = "geeks" GFG = "250" alt = "Geeksforgeeks" >      div>      < hr >            < button type = "button" onclick = "zoomin()" >          Zoom-In      button>            < button type = "button" onclick = "zoomout()" >           Zoom-Out      button>            < script type = "text/javascript" >          function zoomin() {              var GFG = document.getElementById("geeks");              var currWidth = GFG.clientWidth;              GFG.style.width = (currWidth + 100) + "px";          }                    function zoomout() {              var GFG = document.getElementById("geeks");              var currWidth = GFG.clientWidth;              GFG.style.width = (currWidth - 100) + "px";          }      script> body>   html>            Read more : Cách tải Zoom học trực tuyến và các bước sử dụng cơ bản - Meey CRM

Output:

• Before click on button:
  
• After click on Zoom-In Button:
  
• After click on Zoom-Out Button:
  

Using Height property: information technology constitute use to change the new value to resize the acme of the element. Syntax:

object.style.height = "auto|length|%|initial|inherit"

Approach:

• Get the selector of the required image using .getElementById(selector).
• Store the current height value in the variable using .clientHeight.
• Now change the width value to new using .style.height.
• It will proportionally increase and decrease the dimension of an image.

Example:

< html >   < head >      < title >          How to zoom-in and zoom-out          image using JavaScript ?      title>            < script src ="https://code.jquery.com/jquery-1.12.4.min.js">      script> head>   < body style = "text-align:center;" >            < h1 style = "color:green;" >           GeeksForGeeks       h1>             < h3 >          JavaScript | Increase and           Decrease image size      h3>      < hr >            < div class = "box" >          < img src ="https://media.geeksforgeeks.org/wp-content/uploads/20190912174307/qwe1.png"                  id = "geeks" GFG = "250" alt = "Geeksforgeeks" >      div>      < hr >            < button type = "button" onclick = "zoomin()" >           Zoom-In      button>            < button type = "button" onclick = "zoomout()" >           Zoom-Out      button>            < script type = "text/javascript" >          function zoomin() {              var GFG = document.getElementById("geeks");              var currHeight = GFG.clientHeight;                  GFG.style.height = (currHeight + 40) + "px";          }          function zoomout() {              var GFG = document.getElementById("geeks");              var currHeight = GFG.clientHeight;                  GFG.style.height = (currHeight - 40) + "px";          }      script> body>   html> Read more : WP Image Zoom

Output:

• Before click on button:
  
• After click on Zoom-In Button:
  
• After click on Zoom-Out Button:
  

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