{"ast":null,"code":"import SetCache from './_SetCache.js';\nimport arrayIncludes from './_arrayIncludes.js';\nimport arrayIncludesWith from './_arrayIncludesWith.js';\nimport arrayMap from './_arrayMap.js';\nimport baseUnary from './_baseUnary.js';\nimport cacheHas from './_cacheHas.js';\n\n/** Used as the size to enable large array optimizations. */\nvar LARGE_ARRAY_SIZE = 200;\n\n/**\n * The base implementation of methods like `_.difference` without support\n * for excluding multiple arrays or iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Array} values The values to exclude.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n */\nfunction baseDifference(array, values, iteratee, comparator) {\n  var index = -1,\n    includes = arrayIncludes,\n    isCommon = true,\n    length = array.length,\n    result = [],\n    valuesLength = values.length;\n  if (!length) {\n    return result;\n  }\n  if (iteratee) {\n    values = arrayMap(values, baseUnary(iteratee));\n  }\n  if (comparator) {\n    includes = arrayIncludesWith;\n    isCommon = false;\n  } else if (values.length >= LARGE_ARRAY_SIZE) {\n    includes = cacheHas;\n    isCommon = false;\n    values = new SetCache(values);\n  }\n  outer: while (++index < length) {\n    var value = array[index],\n      computed = iteratee == null ? value : iteratee(value);\n    value = comparator || value !== 0 ? value : 0;\n    if (isCommon && computed === computed) {\n      var valuesIndex = valuesLength;\n      while (valuesIndex--) {\n        if (values[valuesIndex] === computed) {\n          continue outer;\n        }\n      }\n      result.push(value);\n    } else if (!includes(values, computed, comparator)) {\n      result.push(value);\n    }\n  }\n  return result;\n}\nexport default baseDifference;","map":null,"metadata":{},"sourceType":"module","externalDependencies":[]}