understyle/dist/util.js

Functional style utilities for authoring JavaScript style objects

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }

var hyphenate = exports.hyphenate = function hyphenate(str) {
  return str.replace(/([A-Z])/g, function (g) {
    return '-' + g.toLowerCase();
  });
};

var objToArr = exports.objToArr = function objToArr(obj) {
  return Object.keys(obj).map(function (key) {
    return { key: key, value: obj[key] };
  });
};

var flattenArray = exports.flattenArray = function flattenArray() {
  var a = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [];
  var b = arguments[1];

  if (Array.isArray(b)) {
    return [].concat(_toConsumableArray(a), _toConsumableArray(b)).reduce(flattenArray, []);
  }
  return [].concat(_toConsumableArray(a), [b]);
};

var toObj = exports.toObj = function toObj() {
  var a = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  var b = arguments[1];

  a[b.key] = b.value;
  return a;
};

var flattenColors = exports.flattenColors = function flattenColors(colors) {
  return objToArr(colors).map(colorKeyMapper).reduce(flattenArray, []).reduce(toObj, {});
};

var colorKeyMapper = exports.colorKeyMapper = function colorKeyMapper(_ref) {
  var key = _ref.key,
      value = _ref.value;

  if (Array.isArray(value)) {
    var scale = value.map(function (val, i) {
      return {
        key: '' + key + i,
        value: val
      };
    });

    return [{
      key: key,
      value: scale[5].value
    }].concat(_toConsumableArray(scale));
  }

  return {
    key: key, value: value
  };
};