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