jQWidgets jqxBarcode lineHeight Property

Last Updated : 13 Sep, 2022

jQWidgets is a JavaScript framework for making web-based applications for PC and mobile devices. It is a very powerful, optimized, platform-independent, and widely supported framework. The jqxBarcode is used to indicate a widget that can display various forms of bar codes.

The lineHeight property is used to set or return the height of the displayed QR code’s line. It is of number type and its default value is 50.

Syntax:

Set the lineHeight property.

$('Selector').jqxBarcode({ lineHeight: 50 });

Return the lineHeight property.

var lineHeight = $('Selector').jqxBarcode('lineHeight');

Linked Files: Download jQWidgets from the given link. In the HTML file, locate the script files in the downloaded folder.

<link rel=”stylesheet” href=”jqwidgets/styles/jqx.base.css” type=”text/css” />
<script type=”text/javascript” src=”scripts/jquery-1.11.1.min.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”> </script>
<script type=”text/javascript” src=”jqwidgets/jqxbarcode.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxbuttons.js”></script>

Example 1: The below example illustrates the jqxBarcode lineHeight property in jQWidgets.

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <link rel="stylesheet" 
          href="jqwidgets/styles/jqx.base.css" 
          type="text/css"/> 
    <script type="text/javascript" 
            src="jqwidgets/jqxcore.js"> 
    </script> 
     <script type="text/javascript" 
        src="scripts/jquery-1.11.1.min.js"></script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxbarcode.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxbuttons.js"> 
    </script> 
  
</head> 
  
<body> 
    <center> 
        <h1 style="color:green"> 
            GeeksforGeeks 
        </h1> 
  
        <h3>jQWidgets jqxBarcode lineHeight Property</h3> 
        <div id="jqxb"></div> 
        <input type="button" style="margin:29px;" 
               id="jqxbtn" value="Click here" /> 
        <div id="log"></div> 
    </center> 
    <script type="text/javascript"> 
        $(document).ready(function () { 
            $("#jqxb").jqxBarcode({ 
                lineHeight: 100, 
            }); 
            $("#jqxbtn").jqxButton({ 
                width: 280 
            }); 
            $("#jqxbtn").on("click", function () { 
                var lh = $('#jqxb').jqxBarcode('lineHeight'); 
                $('#log').text(lh); 
            }); 
        }); 
    </script> 
</body> 
  
</html>

Output:

Example 2: The following is another example of the jqxBarcode lineHeight property in jQWidgets.

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <link rel="stylesheet" 
          href="jqwidgets/styles/jqx.base.css" 
          type="text/css" /> 
   <script type="text/javascript" 
        src="scripts/jquery-1.11.1.min.js"> 
   </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxcore.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxbarcode.js"> 
    </script> 
    <script type="text/javascript" 
            src="jqwidgets/jqxbuttons.js"> 
    </script> 
</head> 
  
<body> 
    <center> 
        <h1 style="color:green"> 
            GeeksforGeeks 
        </h1> 
  
        <h3>jQWidgets jqxBarcode lineHeight Property </h3> 
        <div id="jqxb"></div> 
        <input type="button" style="margin:29px;" 
               id="jqxbtn" value="Click here" /> 
        <div id="log"></div> 
    </center> 
    <script type="text/javascript"> 
        $(document).ready(function () { 
            $("#jqxb").jqxBarcode({ 
                lineHeight: 15, 
            }); 
            $("#jqxbtn").jqxButton({ 
                width: 280 
            }); 
            $("#jqxbtn").on("click", function () { 
                var lh = $('#jqxb').jqxBarcode('lineHeight'); 
                if (lh === null) { 
                    $('#log').text("Null!"); 
                } 
                else { 
                    $('#log').text("Not null!"); 
                } 
            }); 
        }); 
    </script> 
</body> 
</html>