JavaScript | RegExp g Modifier
The RegExp g Modifier in JavaScript is used to find all the occurrences of the pattern instead of stopping after the first match i.e it performs global match.
Syntax:
/regexp/g
or
new RegExp("regexp", "g")Example 1: This example searches the word “geeks” in the whole string.
<!DOCTYPE html><html> <head> <title> JavaScript RegExp g Modifier </title></head> <body style="text-align:center"> <h1 style="color:green"> GeeksforGeeks </h1> <h2>RegExp g Modifier</h2> <p> geeksforgeeks is the computer science portal for geeks. </p> <button onclick="geek()"> Click it! </button> <p id="app"></p> <script> function geek() { var str1 = "geeksforgeeks is the computer " + "science portal for geeks."; var regex4 = /geeks/g; var match4 = str1.match(regex4); document.getElementById("app").innerHTML = "Found " + match4.length + " matches: " + match4; } </script></body> </html> |
Output:
Before Clicking the button:
After Clicking the button:
Example 2: This example searches the word “portal” in the whole string and replaces it with “PORTAL”.
<!DOCTYPE html><html> <head> <title> JavaScript RegExp g Modifier </title></head> <body style="text-align:center"> <h1 style="color:green"> GeeksforGeeks </h1> <h2>RegExp g Modifier</h2> <p> geeksforgeeks is the computer science portal for geeks. </p> <button onclick="geek()"> Click it! </button> <p id="app"></p> <script> function geek() { var str1 = "geeksforgeeks is the computer " + "science portal for geeks."; var regex4 = new RegExp("portal", "g"); var replace = "PORTAL"; var match4 = str1.replace(regex4, replace); document.getElementById("app").innerHTML = " New string: " + match4; } </script></body> </html> |
Output:
Before Clicking the button:
After Clicking the button:
Supported Browsers: The browsers supported by RegExp g Modifier are listed below:
- Google Chrome
- Apple Safari
- Mozilla Firefox
- Opera
- Internet Explorer
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