Consider simplifying this complex logical expression.

Open

  if (typeof value === 'string' && value.indexOf('calc(') > -1 && (browserName === 'firefox' && browserVersion < 15 || browserName === 'chrome' && browserVersion < 25 || browserName === 'safari' && browserVersion < 6.1 || browserName === 'ios_saf' && browserVersion < 7)) {
    return (0, _getPrefixedValue2.default)(value.replace(/calc\(/g, cssPrefix + 'calc('), value, keepUnprefixed);
  }

Consider simplifying this complex logical expression.

Open

  if (browserName === 'chrome' && browserVersion < 43 || (browserName === 'safari' || browserName === 'ios_saf') && browserVersion < 9 || browserName === 'opera' && browserVersion < 30 || browserName === 'android' && browserVersion <= 4.4 || browserName === 'and_uc') {
    return cssPrefix + prefixedKeyframes;
  }

Consider simplifying this complex logical expression.

Open

  if (browser === 'chrome' && version < 43 || (browser === 'safari' || browser === 'ios_saf') && version < 9 || browser === 'opera' && version < 30 || browser === 'android' && version <= 4.4 || browser === 'and_uc') {
    prefixedKeyframes = prefix.css + prefixedKeyframes;
  }

Function testBundle has 44 lines of code (exceeds 25 allowed). Consider refactoring.

Open

const testBundle = name => new Promise((resolve, reject) => {
  const compiler = webpack({
    context: __dirname,
    entry: { [name]: [`./${name}.js`] },
    module: {

Function flexboxIE has 41 lines of code (exceeds 25 allowed). Consider refactoring.

Open

export default function flexboxIE(property, value, style): void {
  if (alternativeProps.hasOwnProperty(property)) {
    style[alternativeProps[property]] = alternativeValues[value] || value
  }

Function prefix has 40 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    value: function prefix(styles) {
      var _this2 = this;

      // use prefixAll as fallback if userAgent can not be resolved
      if (this._usePrefixAllFallback) {

Function _slicedToArray has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.

Open

var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();

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Function generatePrefixMap has 39 lines of code (exceeds 25 allowed). Consider refactoring.

Open

export default function generatePrefixMap(browserList) {
  const prefixMap = {}

  for (const browser in prefixBrowserMap) {
    const prefix = prefixBrowserMap[browser]

Function flexboxIE has 37 lines of code (exceeds 25 allowed). Consider refactoring.

Open

function flexboxIE(property, value, style) {
  if (Object.prototype.hasOwnProperty.call(alternativeProps, property)) {
    style[alternativeProps[property]] = alternativeValues[value] || value;
  }
  if (property === 'flex') {

Function prefixValue has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

Open

function prefixValue(value, propertyPrefixMap) {
  if ((0, _isPrefixedValue2.default)(value)) {
    return value;
  }

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Function prefixValue has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

Open

function prefixValue(value, propertyPrefixMap) {
  if ((0, _isPrefixedValue2.default)(value)) {
    return value;
  }

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Function prefixValue has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

Open

function prefixValue(value, propertyPrefixMap) {
  if (isPrefixedValue(value)) {
    return value
  }

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Function prefixValue has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

Open

function prefixValue(value, propertyPrefixMap) {
  if ((0, _isPrefixedValue2.default)(value)) {
    return value;
  }

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Function prefixValue has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.

Open

function prefixValue(value, propertyPrefixMap) {
  if ((0, _isPrefixedValue2.default)(value)) {
    return value;
  }

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Function prefix has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

  return function prefix(style) {
    for (const property in style) {
      const value = style[property]

      // handle nested objects

Function Prefixer has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    function Prefixer() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      _classCallCheck(this, Prefixer);

Function Prefixer has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    function Prefixer() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      _classCallCheck(this, Prefixer);

Function Prefixer has 34 lines of code (exceeds 25 allowed). Consider refactoring.

Open

    function Prefixer() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      _classCallCheck(this, Prefixer);

Consider simplifying this complex logical expression.

Open

  if (typeof value === 'string' && value.indexOf('image-set(') > -1 && (browserName === 'chrome' || browserName === 'opera' || browserName === 'and_chr' || browserName === 'and_uc' || browserName === 'ios_saf' || browserName === 'safari')) {
    return (0, _getPrefixedValue2.default)(value.replace(/image-set\(/g, cssPrefix + 'image-set('), value, keepUnprefixed);
  }

Consider simplifying this complex logical expression.

Open

  if (typeof value === 'string' && value.indexOf('cross-fade(') > -1 && (browserName === 'chrome' || browserName === 'opera' || browserName === 'and_chr' || (browserName === 'ios_saf' || browserName === 'safari') && browserVersion < 10)) {
    return (0, _getPrefixedValue2.default)(value.replace(/cross-fade\(/g, cssPrefix + 'cross-fade('), value, keepUnprefixed);
  }