List CSS custom properties (CSS Variables)

Question

I\'ve set some CSS custom properties in my stylesheet:

:root {
    --bc: #fff;
    --bc-primary: #eee;
    --bc-secondary: #ffffd;
}

I can re

Answer 1

One possible solution would be to parse the document.styleSheets, and then split the rules into properties/values

var allCSS = [].slice.call(document.styleSheets)
  .reduce(function(prev, styleSheet) {
    if (styleSheet.cssRules) {
      return prev + [].slice.call(styleSheet.cssRules)
        .reduce(function(prev, cssRule) {        
          if (cssRule.selectorText == ':root') {
            var css = cssRule.cssText.split('{');
            css = css[1].replace('}','').split(';');
            for (var i = 0; i < css.length; i++) {
              var prop = css[i].split(':');
              if (prop.length == 2 && prop[0].indexOf('--') == 1) {
                console.log('Property name: ', prop[0]);
                console.log('Property value:', prop[1]);
              }              
            }
          }
        }, '');
    }
  }, '');

:root {
    --bc: #fff;
    --bc-primary: #eee;
    --bc-secondary: #ffffd;
}