diff options
Diffstat (limited to 'school/node_modules/lodash/pickBy.js')
-rw-r--r-- | school/node_modules/lodash/pickBy.js | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/school/node_modules/lodash/pickBy.js b/school/node_modules/lodash/pickBy.js new file mode 100644 index 0000000..ae7c271 --- /dev/null +++ b/school/node_modules/lodash/pickBy.js @@ -0,0 +1,37 @@ +var arrayMap = require('./_arrayMap'), + baseIteratee = require('./_baseIteratee'), + basePickBy = require('./_basePickBy'), + getAllKeysIn = require('./_getAllKeysIn'); + +/** + * Creates an object composed of the `object` properties `predicate` returns + * truthy for. The predicate is invoked with two arguments: (value, key). + * + * @static + * @memberOf _ + * @since 4.0.0 + * @category Object + * @param {Object} object The source object. + * @param {Function} [predicate=_.identity] The function invoked per property. + * @returns {Object} Returns the new object. + * @example + * + * var object = { 'a': 1, 'b': '2', 'c': 3 }; + * + * _.pickBy(object, _.isNumber); + * // => { 'a': 1, 'c': 3 } + */ +function pickBy(object, predicate) { + if (object == null) { + return {}; + } + var props = arrayMap(getAllKeysIn(object), function(prop) { + return [prop]; + }); + predicate = baseIteratee(predicate); + return basePickBy(object, props, function(value, path) { + return predicate(value, path[0]); + }); +} + +module.exports = pickBy; |