| var baseSlice = require('./_baseSlice'); | |
| /** | |
| * The base implementation of methods like `_.dropWhile` and `_.takeWhile` | |
| * without support for iteratee shorthands. | |
| * | |
| * @private | |
| * @param {Array} array The array to query. | |
| * @param {Function} predicate The function invoked per iteration. | |
| * @param {boolean} [isDrop] Specify dropping elements instead of taking them. | |
| * @param {boolean} [fromRight] Specify iterating from right to left. | |
| * @returns {Array} Returns the slice of `array`. | |
| */ | |
| function baseWhile(array, predicate, isDrop, fromRight) { | |
| var length = array.length, | |
| index = fromRight ? length : -1; | |
| while ((fromRight ? index-- : ++index < length) && | |
| predicate(array[index], index, array)) {} | |
| return isDrop | |
| ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length)) | |
| : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index)); | |
| } | |
| module.exports = baseWhile; | |