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Diffstat (limited to 'deps/npm/node_modules/lodash/array/zipWith.js')
-rw-r--r-- | deps/npm/node_modules/lodash/array/zipWith.js | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/deps/npm/node_modules/lodash/array/zipWith.js b/deps/npm/node_modules/lodash/array/zipWith.js new file mode 100644 index 0000000000..ad103742cd --- /dev/null +++ b/deps/npm/node_modules/lodash/array/zipWith.js @@ -0,0 +1,36 @@ +var restParam = require('../function/restParam'), + unzipWith = require('./unzipWith'); + +/** + * This method is like `_.zip` except that it accepts an iteratee to specify + * how grouped values should be combined. The `iteratee` is bound to `thisArg` + * and invoked with four arguments: (accumulator, value, index, group). + * + * @static + * @memberOf _ + * @category Array + * @param {...Array} [arrays] The arrays to process. + * @param {Function} [iteratee] The function to combine grouped values. + * @param {*} [thisArg] The `this` binding of `iteratee`. + * @returns {Array} Returns the new array of grouped elements. + * @example + * + * _.zipWith([1, 2], [10, 20], [100, 200], _.add); + * // => [111, 222] + */ +var zipWith = restParam(function(arrays) { + var length = arrays.length, + iteratee = length > 2 ? arrays[length - 2] : undefined, + thisArg = length > 1 ? arrays[length - 1] : undefined; + + if (length > 2 && typeof iteratee == 'function') { + length -= 2; + } else { + iteratee = (length > 1 && typeof thisArg == 'function') ? (--length, thisArg) : undefined; + thisArg = undefined; + } + arrays.length = length; + return unzipWith(arrays, iteratee, thisArg); +}); + +module.exports = zipWith; |