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reduceRight

js
_.reduceRight(collection, [iteratee=_.identity], [accumulator])

此方法与 _.reduce 类似,不同之处在于它从右到左迭代 collection 的元素。

¥This method is like _.reduce except that it iterates over elements of collection from right to left.

新增于

¥Since

0.1.0

参数

¥Arguments

  1. collection (数组|对象):要迭代的集合。

    ¥collection (Array|Object): The collection to iterate over.

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

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

  3. [accumulator] (*):的逆;

    ¥[accumulator] ()*: The initial value.

返回

¥Returns

(*):返回累积值。

¥()*: Returns the accumulated value.

示例

¥Example

js
var array = [[0, 1], [2, 3], [4, 5]];

_.reduceRight(array, function(flattened, other) {
  return flattened.concat(other);
}, []);
// => [4, 5, 2, 3, 0, 1]

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