diff options
Diffstat (limited to 'node_modules/lodash/chunk.js')
-rw-r--r-- | node_modules/lodash/chunk.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/node_modules/lodash/chunk.js b/node_modules/lodash/chunk.js new file mode 100644 index 0000000..5b562fe --- /dev/null +++ b/node_modules/lodash/chunk.js @@ -0,0 +1,50 @@ +var baseSlice = require('./_baseSlice'), + isIterateeCall = require('./_isIterateeCall'), + toInteger = require('./toInteger'); + +/* Built-in method references for those with the same name as other `lodash` methods. */ +var nativeCeil = Math.ceil, + nativeMax = Math.max; + +/** + * Creates an array of elements split into groups the length of `size`. + * If `array` can't be split evenly, the final chunk will be the remaining + * elements. + * + * @static + * @memberOf _ + * @since 3.0.0 + * @category Array + * @param {Array} array The array to process. + * @param {number} [size=1] The length of each chunk + * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`. + * @returns {Array} Returns the new array of chunks. + * @example + * + * _.chunk(['a', 'b', 'c', 'd'], 2); + * // => [['a', 'b'], ['c', 'd']] + * + * _.chunk(['a', 'b', 'c', 'd'], 3); + * // => [['a', 'b', 'c'], ['d']] + */ +function chunk(array, size, guard) { + if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) { + size = 1; + } else { + size = nativeMax(toInteger(size), 0); + } + var length = array == null ? 0 : array.length; + if (!length || size < 1) { + return []; + } + var index = 0, + resIndex = 0, + result = Array(nativeCeil(length / size)); + + while (index < length) { + result[resIndex++] = baseSlice(array, index, (index += size)); + } + return result; +} + +module.exports = chunk; |