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HTML | DOM Input URL pattern Property
  • Difficulty Level : Basic
  • Last Updated : 17 Oct, 2019

The DOM Input URL pattern Property in HTML DOM is used to set or return the pattern attribute of a URL field. It is used to specify the regular expression on which the input elements value is checked. Use the global title attribute to describe the pattern for helping the user.

Syntax:

  • It returns the Input url pattern property.
    urlObject.pattern
  • It is used to set Input url pattern property.
    urlObject.pattern = regexp

    Property Values: It contains single value regexp which is used to specify the regular expression that a URL field value is checked against.

    Return Value: It returns a string value which represents the regular expression that a URL field value is checked against.

    Example-1: This example illustrates how to return the Input url pattern property.






    <!DOCTYPE html>
    <html>
      
    <head>
        <title>
            DOM Input URL pattern Property
        </title>
    </head>
      
    <body>
        <center>
            <h1 style="color:green;"
                    GeeksForGeeks 
                </h1>
      
            <h2>
              DOM Input URL pattern Property
          </h2>
      
            <label for="uname" 
                   style="color:green">
                <b>Enter URL</b>
            </label>
      
            <input type="url"
                   id="gfg" 
                   placeholder="Enter URL" 
                   size="20"
                   pattern="https?://.+" 
                   title="Include http://">
      
            <br>
            <br>
      
            <button type="button"
                    onclick="geeks()">
                Click
            </button>
      
            <p id="GFG" 
               style="color:green;
                      font-size:25px;">
          </p>
      
            <script>
                function geeks() {
                    
                    var link = 
                        document.getElementById(
                          "gfg").pattern;
                    
                    document.getElementById(
                      "GFG").innerHTML = link;
                }
            </script>
        </center>
    </body>
      
    </html>

    Output:
    Before Clicking On Button:

    After Clicking On Button:

    Example-2: This Example illustrates how to set the Property.




    <!DOCTYPE html>
    <html>
      
    <head>
        <title>
            DOM Input URL pattern Property
        </title>
    </head>
      
    <body>
        <center>
            <h1 style="color:green;"
                    GeeksForGeeks 
                </h1>
      
            <h2>
              DOM Input URL pattern Property
          </h2>
      
            <label for="uname" 
                   style="color:green">
                <b>Enter URL</b>
            </label>
      
            <input type="url"
                   id="gfg" 
                   placeholder="Enter URL"
                   size="20"
                   pattern="https?://.+"
                   title="Include http://">
      
            <br>
            <br>
      
            <button type="button" 
                    onclick="geeks()">
                Click
            </button>
      
            <p id="GFG"
               style="color:green;
                          font-size:25px;">
            </p>
      
            <script>
                function geeks() {
      
                    var link =
                        document.getElementById(
                            "gfg").pattern =
                        "URL must start with " +
                        "http://www.facebook.com/";
      
                    document.getElementById(
                        "GFG").innerHTML = link;
                }
            </script>
        </center>
    </body>
      
    </html>

    Output :
    Before Clicking On Button: :

    After Clicking On Button:

    Supported Browsers: The browser supported by DOM input URL pattern property are listed below:

    • Google Chrome
    • Internet Explorer 10.0 +
    • Firefox
    • Opera
    • Safari

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