The RegExp \0 Metacharacter in JavaScript is used to find the NULL character. If it is found it returns the position else it returns -1.
Syntax:
/\0/
or
new RegExp("\\0")
Example 1: This example searches for the Null character in the string.
Javascript
function geek() { let str1 = "neveropen@_123_$"; let regex4 = /\0/; let match4 = str1.search(regex4); if (match4 == -1) { console.log("No Null characters present. "); } else { console.log("Index of Null character: " + match4); }}geek() |
Output
No Null characters present.
Example 2: This example searches the position of the NULL character in the string.
Javascript
function geek() { let str1 = "123ge\0eky456"; let regex4 = new RegExp("\\0"); let match4 = str1.search(regex4); console.log(" Index of NULL character: " + match4);}geek() |
Output
Index of NULL character: 5
Supported Browsers: The browsers supported by RegExp \0 Metacharacter are listed below:
- Google Chrome
- Apple Safari
- Mozilla Firefox
- Opera
- Internet Explorer
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.
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