JavaScript | RegExp (x|y) Expression
The RegExp (x|y) Expression in JavaScript is used to search any of the specified characters (separated by |).
Syntax:
/(x|y)/
or
new RegExp("(x|y)")
Syntax with modifiers:
/(x|y)/g
or
new RegExp("(x|y)", "g")
Example 1: This example searches the word “GEEKS” or “portal” in the whole string.
<!DOCTYPE html> <html> <head> <title> JavaScript RegExp (x|y) Expression </title> </head> <body style="text-align:center"> <h1 style="color:green"> GeeksforGeeks </h1> <h2>RegExp (x|y) Expression</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|portal)/g; var match4 = str1.match(regex4); document.getElementById("app").innerHTML = "Found " + match4.length + " matches: " + match4; } </script> </body> </html> |
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Output:
- Before Clicking the button:
- After Clicking the button:
Example 2: This example searches the digit numbered 0 or 5 in the whole string.
<!DOCTYPE html> <html> <head> <title> JavaScript RegExp (x|y) Expression </title> </head> <body style="text-align:center"> <h1 style="color:green"> GeeksforGeeks </h1> <h2>RegExp (x|y) Expression</h2> <p>Input String: 012034567895.</p> <button onclick="geek()"> Click it! </button> <p id="app"></p> <script> function geek() { var str1 = "012034567895"; var regex4 = /(0|5)/g; var match4 = str1.match(regex4); document.getElementById("app").innerHTML = "Found " + match4.length + " matches: " + match4; } </script> </body> </html> |
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Output:
- Before Clicking the button:
- After Clicking the button:
Supported Browsers: The browsers supported by RegExp (x|y) Expression are listed below:
- Google Chrome
- Apple Safari
- Mozilla Firefox
- Opera
- Internet Explorer
