RegExp \ddd Metacharacter
A global search for the octal number 127 (W) in a string:
let text = "Visit W3Schools. Hello World!";
let pattern = /\127/g;
let result = text.match(pattern);
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Description
The \ddd metacharacters matches the Latin character by an octal number (ddd).
Syntax
new RegExp("\\ddd")
or simply:
/\ddd/
Syntax with modifiers
new RegExp("\\ddd", "g")
or simply:
/\ddd/g
Regular Expression Methods
Regular Expression Search and Replace can be done with different methods.
These are the most common:
String Methods
| Method | Description |
|---|---|
| match(regex) | Returns an Array of results |
| matchAll(regex) | Returns an Iterator of results |
| replace(regex) | Returns a new String |
| replaceAll(regex) | Returns a new String |
| search(regex) | Returns the index of the first match |
| split(regex) | Returns an Array of results |
RegExp Methods
| Method | Description |
|---|---|
| regex.exec() | Returns an Iterator of results |
| regex.test() | Returns true or false |
Browser Support
/\ddd/ is an ECMAScript1 (JavaScript 1997) feature.
It is supported in all browsers:
| Chrome | Edge | Firefox | Safari | Opera |
