Javascript RegExp Objects - Properties and Methods
Description
- In javascript, Regular expressions are used to perform pattern matches in strings.
- Can be created by
- i) Literal syntax. For example, to match 10 digit numbers : var mobileNumber = /\d{10}/.
- ii)With RegExp constructor function. For example var mobileNumber = new RegExp("\\d{10}", "g").
Javascript RegExp Objects Property
| Name | Description | Version |
|---|---|---|
| constructor | Implemented in JavaScript 1.1 | |
| global | Whether or not to test with the regular expression or not. | Implemented in JavaScript 1.2 |
| ignoreCase | Whether case is to be ignored during pattern matching in a string | Implemented in JavaScript 1.2 |
| input | The string against which a regular expression is matched. | Implemented in JavaScript 1.2 |
| lastIndex | Specifies the index at which to start the next match. | Implemented in JavaScript 1.2 |
| lastMatch | The last matched characters. | Implemented in JavaScript 1.2 |
| multiline | Whether search in strings should be performed across multiple lines. | Implemented in JavaScript 1.2 |
| prototype | Use to add new properties and methods to all instances of a class. |
Implemented in JavaScript 1.1 |
| rightContext | The substring following the most recent match. | Implemented in JavaScript 1.2 |
| source | A read-only property that contains the text of the pattern. | Implemented in JavaScript 1.2 |
Javascript RegExp Objects Methods
| Name | Description | Version |
|---|---|---|
| compile | Use to execute the search for a match in a specified string. | Implemented in JavaScript 1.2 |
| exec | Executes a search for a match in its string parameter. | Implemented in JavaScript 1.2 |
| test | Executes a search for a match between a regular expression and a specified string | Implemented in JavaScript 1.2 |
| toSource | Use to get a string representation (source code) of the object. | Implemented in JavaScript 1.3 |
| toString | Represent the source code of the specified object. | Implemented in JavaScript 1.1 |