_baseFlatten.js
496ca12772aevalidity_dates

_baseFlatten.js
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			var arrayPush = require('./_arrayPush'),
			isFlattenable = require('./_isFlattenable');

			/**
			* The base implementation of `_.flatten` with support for restricting flattening.
			*
			* @private
			* @param {Array} array The array to flatten.
			* @param {number} depth The maximum recursion depth.
			* @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
			* @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
			* @param {Array} [result=[]] The initial result value.
			* @returns {Array} Returns the new flattened array.
			*/
			function baseFlatten(array, depth, predicate, isStrict, result) {
			var index = -1,
			length = array.length;

			predicate \|\| (predicate = isFlattenable);
			result \|\| (result = []);

			while (++index < length) {
			var value = array[index];
			if (depth > 0 && predicate(value)) {
			if (depth > 1) {
			// Recursively flatten arrays (susceptible to call stack limits).
			baseFlatten(value, depth - 1, predicate, isStrict, result);
			} else {
			arrayPush(result, value);
			}
			} else if (!isStrict) {
			result[result.length] = value;
			}
			}
			return result;
			}

			module.exports = baseFlatten;