diff options
Diffstat (limited to 'deps/npm/node_modules/lodash/internal/equalArrays.js')
-rw-r--r-- | deps/npm/node_modules/lodash/internal/equalArrays.js | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/deps/npm/node_modules/lodash/internal/equalArrays.js b/deps/npm/node_modules/lodash/internal/equalArrays.js new file mode 100644 index 0000000000..e0bb2d32a8 --- /dev/null +++ b/deps/npm/node_modules/lodash/internal/equalArrays.js @@ -0,0 +1,51 @@ +var arraySome = require('./arraySome'); + +/** + * A specialized version of `baseIsEqualDeep` for arrays with support for + * partial deep comparisons. + * + * @private + * @param {Array} array The array to compare. + * @param {Array} other The other array to compare. + * @param {Function} equalFunc The function to determine equivalents of values. + * @param {Function} [customizer] The function to customize comparing arrays. + * @param {boolean} [isLoose] Specify performing partial comparisons. + * @param {Array} [stackA] Tracks traversed `value` objects. + * @param {Array} [stackB] Tracks traversed `other` objects. + * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`. + */ +function equalArrays(array, other, equalFunc, customizer, isLoose, stackA, stackB) { + var index = -1, + arrLength = array.length, + othLength = other.length; + + if (arrLength != othLength && !(isLoose && othLength > arrLength)) { + return false; + } + // Ignore non-index properties. + while (++index < arrLength) { + var arrValue = array[index], + othValue = other[index], + result = customizer ? customizer(isLoose ? othValue : arrValue, isLoose ? arrValue : othValue, index) : undefined; + + if (result !== undefined) { + if (result) { + continue; + } + return false; + } + // Recursively compare arrays (susceptible to call stack limits). + if (isLoose) { + if (!arraySome(other, function(othValue) { + return arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB); + })) { + return false; + } + } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB))) { + return false; + } + } + return true; +} + +module.exports = equalArrays; |