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reSemVer
[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url]
[Regular expression][mdn-regexp] to match a [semantic version][semantic-version] string.
bash
npm install @stdlib/regexp-semver
javascript
var reSemVer = require( '@stdlib/regexp-semver' );
#### reSemVer()
Returns a [regular expression][mdn-regexp] to match a [semantic version][semantic-version] string.
javascript
var RE_SEMVER = reSemVer();
// returns <RegExp>
var parts = RE_SEMVER.exec( '1.0.0' );
/* returns
[
'1.0.0',
'1',
'0',
'0',
undefined,
undefined,
index: 0,
input: '1.0.0',
groups: undefined
]
*/
parts = RE_SEMVER.exec( '1.0.0-alpha.1' );
/* returns
[
'1.0.0-alpha.1',
'1',
'0',
'0',
'alpha',
'1',
index: 0,
input: '1.0.0-alpha.1',
groups: undefined
]
*/
#### reSemVer.REGEXP
[Regular expression][mdn-regexp] to match a [semantic version][semantic-version] string.
javascript
var parts = reSemVer.REGEXP.exec( '0.2.3' );
/* returns
[
'0.2.3',
'0',
'2',
'3',
undefined,
undefined,
index: 0,
input: '0.2.3',
groups: undefined
]
*/
javascript
var reSemVer = require( '@stdlib/regexp-semver' );
var RE_SEMVER = reSemVer();
var version = '1.0.0';
var bool = RE_SEMVER.test( version );
// returns true
version = '1.0.0-alpha.1';
bool = RE_SEMVER.test( version );
// returns true
version = '1.0.0-alpha.1+build.1';
bool = RE_SEMVER.test( version );
// returns true
version = '1.0.0-alpha.1+build.1.2.b8f12d7';
bool = RE_SEMVER.test( version );
// returns true
version = '1.2';
bool = RE_SEMVER.test( version );
// returns false
version = '-1.2.3';
bool = RE_SEMVER.test( version );
// returns false
version = 'a.b.c';
bool = RE_SEMVER.test( version );
// returns false
