Reduce CSS calc() function to the maximum.
Particularly useful for packages like rework-calc or postcss-calc.
npm install reduce-css-calcvar reduceCssCalc = require('reduce-css-calc')
reduceCssCalc("calc(1 + 1)")
// 2
reduceCssCalc("calc((6 / 2) - (4 * 2) + 1)")
// -4
reduceCssCalc("calc(3rem * 2 - 1rem)")
// 5rem
reduceCssCalc("calc(2 * 50%)")
// 100%
reduceCssCalc("calc(120% * 50%)")
// 60%
reduceCssCalc("a calc(1 + 1) b calc(1 - 1) c")
// a 2 b 0 c
reduceCssCalc("calc(calc(calc(1rem * 0.75) * 1.5) - 1rem)")
// 0.125rem
reduceCssCalc("calc(calc(calc(1rem * 0.75) * 1.5) - 1px)")
// calc(1.125rem - 1px)
reduceCssCalc("-moz-calc(100px / 2)")
// 50px
reduceCssCalc("-moz-calc(50% - 2em)")
// -moz-calc(50% - 2em)See unit tests for others examples.
Work on a branch, install dev-dependencies, respect coding style & run tests before submitting a bug fix or a feature.
git clone https://github.com/MoOx/reduce-css-calc.git
git checkout -b patch-1
npm install
npm test