JavaScript | global Property

Last Updated : 12 Apr, 2021

The global Property in JavaScript is used to specify whether the “g” modifier is set or not. If the “g” modifier is set than this property returns true else false.
Syntax:

RegexObj.global

Return Value: It returns true if g modifier is set, else false.
Example 1: This example checks if the regular expression contains g Modifier or not.

html

<!DOCTYPE html>
<html>
    <head>
        <title>global Property</title>
    </head>
    <body style="text-align:center">
        <h1 style="color:green">GeeksforGeeks</h1>
        <h2>global Property</h2>
    <button onclick="geek()">Click it!</button>
  
    <script>
    function geek() {
        var regex = new RegExp('foo', 'g');
        alert(regex.global);
    }
    </script>
    </body>
</html>

Output:
Before clicking the button:

After clicking the button:

global

Example 2: This example checks if the regular expression contains g Modifier or not.

html

<!DOCTYPE html>
<html>
   
<head>
    <title>
      global Property
  </title>
</head>
   
<body style="text-align:center">
    <h1 style="color:green">
      GeeksforGeeks
  </h1>
    <h2>
     global Property
  </h2>
    <button onclick="geek()">
      Click it!
  </button>
   
    <script>
        function geek() {
            var regex = /[a-d]/;
            var str =
                "GeeksforGeeks\n"+
                "is the computer\n"+
                "science portal for geeks.";
             
            if (regex.global) {
                alert("g Modifier is present");
            } else {
                alert("g Modifier is absent.");
            }
        }
    </script>
</body>
   
</html>