css-specificity

CSS3 selector specificity calculator.

css-specificity is wrapper module of specimen.

Installation

$ npm install css-specificity

Example

var specificity = require('css-specificity')

var calc = specificity.calc('.class, p.sel:after')
var winner = specificity.vs('.class', 'p.sel:after')

console.log(calc)
/*
[
    {
        'selector': '.class',
        'specificity': [0, 0, 1, 0],
        'a': 0,
        'b': 1,
        'c': 0
    },
    {
        'selector': 'p.sel:after',
        'specificity': [0, 0, 1, 2],
        'a': 0,
        'b': 1,
        'c': 2
    }
]
*/

console.log(winner)
// 'p.sel:after'

API

specificity.calc(selector)

return caluculation result.

specificity.vs(selector1, selector2)

return selector has higher specificity.

License

The MIT License (MIT)

Copyright (c) 2014 Masaaki Morishita