HTML DOM Input URL pattern Property

HTML Web Development Front End Technology

The HTML DOM Input URL pattern property sets/returns the regular expression corresponding to URL Input. The pattern attribute’s value is checked against the text typed in url field.

Sytax

Following is the syntax −

Returning regular expression

inputURLObject.pattern

Setting pattern to regular expression

inputURLObject.pattern = ‘RegExp’

Example

Let us see an example of Input URL pattern property −

Live Demo

<!DOCTYPE html>
<html>
<head>
<title>Input URL pattern</title>
<style>
   form {
      width:70%;
      margin: 0 auto;
      text-align: center;
   }
   * {
      padding: 2px;
      margin:5px;
   }
   input[type="submit"] {
      border-radius: 10px;
   }
</style>
</head>
<body>
<form onsubmit="checkPattern()">
<fieldset>
<legend>URL-pattern</legend>
<label for="URLSelect">URL :
<input type="url" id="URLSelect" pattern="https?://www.+[a-zA-Z0-9]+.com">
</label>
<input type="submit" value="Submit">
<div id="divDisplay"></div>
</fieldset>
</form>
<script>
   var divDisplay = document.getElementById("divDisplay");
   var inputURL = document.getElementById("URLSelect");
   divDisplay.textContent = 'pattern: '+inputURL.pattern;
   function checkPattern() {
      if(inputURL.value !== ''){
         alert("Redirecting to "+User);
      }
   }
</script>
</body>
</html>