res

    0.4.0 • Public • Published

    res

    CSS resolution detection in JavaScript

    npm install res --save

    API

    res.dpi()

    • Get resolution in dpi
    • @return number

    res.dpcm()

    • Get resolution in dpcm
    • @return number

    res.dppx()

    • Get resolution in dppx
    • @return number

    Usage

    var res = require('res')
    res.dppx() // 1
    res.dpi() // 96
    res.dpcm() // 37.79527559055118

    Technical notes

    Use with care

    res was mainly written for investigative purposes. Making retina design accommodations can be impractical. Consider alternatives to resolution detection.

    Example outputs

    Device res.ddpx() res.dpi() res.dpcm()
    desktop at default zoom 1 96 37.79527559055118
    iPhone 4s at default zoom 2 192 75.59055118110236

    Compatibility

    Browsers with resolution detectable by res

    • Webkit (Chrome/Safari/Android)
    • Firefox 18+
    • Opera 11.1+ (Presto 2.8+)
    • IE 6+

    Methods return 0 where undetectable.

    Related resources

    License

    MIT

    Install

    npm i res

    DownloadsWeekly Downloads

    453

    Version

    0.4.0

    License

    MIT

    Last publish

    Collaborators

    • ryanve