JavaScript | RegExp \s Metacharacter
The RegExp \s Metacharacter in JavaScript is used to find the whitespace characters. The whitespace character can be a space/tab/new line/vertical character. It is same as [ \t\n\r].
Syntax:
/\s/
or
new RegExp("\\s")Syntax with modifiers:
/\s/g
or
new RegExp("\\s", "g")Example 1: This example replaces the white spaces with dash.
html
<!DOCTYPE html><html><head> <title> JavaScript RegExp \s Metacharacter </title></head><body style="text-align:center"> <h1 style="color:green"> GeeksforGeeks </h1> <h2>RegExp \s Metacharacter</h2> <p> Input String: GeeksforGeeks is the computer science\nportal\tfor geeks. </p> <button onclick="geek()"> Click it! </button> <p id="app"></p> <script> function geek() { var regex = /\s/g; var replace = "-"; var str = "GeeksforGeeks is the computer " + "science\nportal\tfor geeks."; var str1 = str.replace(regex, replace); alert("The new string is: \n" + str1); } </script></body></html> |
Output:
Before Clicking the button:
After Clicking the button:
Example 2: This example replaces all the white spaces with hash(#).
html
<!DOCTYPE html><html><head> <title> JavaScript RegExp \s Metacharacter </title></head><body style="text-align:center"> <h1 style="color:green"> GeeksforGeeks </h1> <h2>RegExp \s Metacharacter</h2> <p> Input String: Geeks Classes is a Classroom programme by GeeksforGeeks to enhance DSA. </p> <button onclick="geek()"> Click it! </button> <p id="app"></p> <script> function geek() { var regex = new RegExp("\\s", "g"); var replace = "#"; var str = "Geeks Classes is a Classroom " + "programme\nby GeeksforGeeks\tto" + " enhance DSA"; var str1 = str.replace(regex, replace); alert("The new string is: \n" + str1); } </script></body></html> |
Output:
Before Clicking the button:
After Clicking the button:
Supported Browsers: The browsers supported by RegExp \s Metacharacter are listed below:
- Google Chrome
- Apple Safari
- Mozilla Firefox
- Opera
- Internet Explorer
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