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- {"ast":null,"code":"// 0 -> Array#forEach\n// 1 -> Array#map\n// 2 -> Array#filter\n// 3 -> Array#some\n// 4 -> Array#every\n// 5 -> Array#find\n// 6 -> Array#findIndex\nvar ctx = require('./_ctx');\n\nvar IObject = require('./_iobject');\n\nvar toObject = require('./_to-object');\n\nvar toLength = require('./_to-length');\n\nvar asc = require('./_array-species-create');\n\nmodule.exports = function (TYPE, $create) {\n var IS_MAP = TYPE == 1;\n var IS_FILTER = TYPE == 2;\n var IS_SOME = TYPE == 3;\n var IS_EVERY = TYPE == 4;\n var IS_FIND_INDEX = TYPE == 6;\n var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;\n var create = $create || asc;\n return function ($this, callbackfn, that) {\n var O = toObject($this);\n var self = IObject(O);\n var f = ctx(callbackfn, that, 3);\n var length = toLength(self.length);\n var index = 0;\n var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;\n var val, res;\n\n for (; length > index; index++) {\n if (NO_HOLES || index in self) {\n val = self[index];\n res = f(val, index, O);\n\n if (TYPE) {\n if (IS_MAP) result[index] = res; // map\n else if (res) switch (TYPE) {\n case 3:\n return true;\n // some\n\n case 5:\n return val;\n // find\n\n case 6:\n return index;\n // findIndex\n\n case 2:\n result.push(val);\n // filter\n } else if (IS_EVERY) return false; // every\n }\n }\n }\n\n return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;\n };\n};","map":null,"metadata":{},"sourceType":"script"}
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