0.4.0 • Published 8 years ago
res v0.4.0
res
CSS resolution detection in JavaScript
npm install res --saveAPI
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() // 37.79527559055118Technical notes
- dppx equals
devicePixelRatio - dppx is the preferred resolution unit for web design
- User zoom affects resolution
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