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res

v0.4.0

Published

Device resolution detection module

Downloads

1,975

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

ryanveryanve

Keywords

devicescreenbrowserresolutiondetectionresponsiveretinadevice-pixel-ratioendermobiledetectdpr

Readme

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

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