wix-style-react/dist/es/src/Foundation/stylable/mixins/calc.js

wix-style-react

module.exports = function (expression) {
  var units = expression.match(/[a-z%]+/g); // All values are unitless, reduce to a single number.

  if (!units) {
    return eval(expression).toString();
  } // All values have the same unit, reduce to a single number
  // followed by the unit.


  if (units.every(function (u) {
    return u === units[0];
  })) {
    return eval(expression.split(units[0]).join(' ')) + units[0];
  } // Fallback on native calc.


  return 'calc(' + expression + ')';
};