dropRightWhile

_.dropRightWhile(array, [predicate=_.identity])

创建 array 的一个切片，不包括从结尾删除的元素。元素将被删除，直到 predicate 返回 falsey。使用三个参数调用谓词：(value, index, array)。

¥Creates a slice of array excluding elements dropped from the end. Elements are dropped until predicate returns falsey. The predicate is invoked with three arguments: (value, index, array).

新增于

¥Since

3.0.0

参数

¥Arguments

1. array (数组)：要查询的数组。

   ¥array (Array): The array to query.

2. [predicate=_.identity] (函数)：每次迭代调用的函数。

   ¥[predicate=_.identity] (Function): The function invoked per iteration.

返回

¥Returns

(数组)：返回 array 的切片。

¥(Array): Returns the slice of array.

示例

¥Example

var users = [
  { 'user': 'barney',  'active': true },
  { 'user': 'fred',    'active': false },
  { 'user': 'pebbles', 'active': false }
];

_.dropRightWhile(users, function(o) { return !o.active; });
// => objects for ['barney']

// The `_.matches` iteratee shorthand.
_.dropRightWhile(users, { 'user': 'pebbles', 'active': false });
// => objects for ['barney', 'fred']

// The `_.matchesProperty` iteratee shorthand.
_.dropRightWhile(users, ['active', false]);
// => objects for ['barney']

// The `_.property` iteratee shorthand.
_.dropRightWhile(users, 'active');
// => objects for ['barney', 'fred', 'pebbles']