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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;
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