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@stdlib/string-reverse

v0.2.1

Published

Reverse a string.

Downloads

76

Readme

reverseString

NPM version Build Status Coverage Status

Reverse a string.

Installation

npm install @stdlib/string-reverse

Usage

var reverseString = require( '@stdlib/string-reverse' );

reverseString( str[, options] )

Reverses a string.

var out = reverseString( 'last man standing' );
// returns 'gnidnats nam tsal'

out = reverseString( 'Hidden Treasures' );
// returns 'serusaerT neddiH'

out = reverseString( 'Lorem ipsum 𝌆 dolor sit ameͨ͆t.' );
// returns '.teͨ͆ma tis rolod 𝌆 muspi meroL'

The function supports the following options:

  • mode: type of characters to reverse. Must be one of the following:

    • 'grapheme': grapheme clusters. Appropriate for strings containing visual characters which can span multiple Unicode code points (e.g., emoji).
    • 'code_point': Unicode code points. Appropriate for strings containing visual characters which are comprised of more than one Unicode code unit (e.g., ideographic symbols and punctuation and mathematical alphanumerics).
    • 'code_unit': UTF-16 code units. Appropriate for strings containing visual characters drawn from the basic multilingual plane (BMP) (e.g., common characters, such as those from the Latin, Greek, and Cyrillic alphabets).

    Default: 'grapheme'.

Notes

  • By default, the function assumes the general case in which an input string may contain an arbitrary number of grapheme clusters. This assumption comes with a performance cost. Accordingly, if an input string is known to only contain visual characters of a particular type (e.g., only alphanumeric), one can achieve better performance by specifying the appropriate mode option.

Examples

var reverseString = require( '@stdlib/string-reverse' );

var str = reverseString( 'last man standing' );
// returns 'gnidnats nam tsal'

str = reverseString( 'presidential election' );
// returns 'noitcele laitnediserp'

str = reverseString( 'javaScript' );
// returns 'tpircSavaj'

str = reverseString( 'Hidden Treasures' );
// returns 'serusaerT neddiH'

See Also


Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

Chat


License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.