The RegExp \f Metacharacter in JavaScript is used to find the form feed character (form feed is a page-breaking ASCII control character). If it is found it returns the position else it returns -1.
Syntax:
/\f/
or
new RegExp("\\f")
Example 1: This example searches for the form feed character in the string.
Javascript
function geek() { let str1 = "neveropen@_123_$"; let regex4 = /\f/; let match4 = str1.search(regex4); if (match4 == -1) { console.log("No form feed character present. "); } else { console.log("Index of form feed character: " + match4); }}geek(); |
No form feed character present.
Example 2: This example searches the position of the form feed character in the string.
Javascript
function geek() { let str1 = "123ge\feky456"; let regex4 = new RegExp("\\f"); let match4 = str1.search(regex4); console.log(" Index of form feed character: " + match4);}geek(); |
Index of form feed character: 5
Supported Browsers: The browsers supported by RegExp \f Metacharacter are listed below:
- Chrome
- Safari
- Firefox
- Opera
- Edge
We have a complete list of Javascript RegExp expressions, to check those please go through this JavaScript RegExp Complete Reference article.
We have a Cheat Sheet on Javascript where we covered all the important topics of Javascript to check those please go through Javascript Cheat Sheet-A Basic guide to JavaScript.
