spread

_.spread(func, [start=0])

创建一个函数，使用创建函数的 this 绑定和与 Function#apply 非常相似的参数数组调用 func。

¥Creates a function that invokes func with the this binding of the create function and an array of arguments much like Function#apply.

注意：此方法基于 扩展运算符。

¥Note: This method is based on the spread operator.

新增于

¥Since

3.2.0

参数

¥Arguments

1. func (函数)：分散参数的函数。

   ¥func (Function): The function to spread arguments over.

2. [start=0] (数值)：扩展的起始位置。

   ¥[start=0] (number): The start position of the spread.

返回

¥Returns

(函数)：返回新函数。

¥(Function): Returns the new function.

示例

¥Example

var say = _.spread(function(who, what) {
  return who + ' says ' + what;
});

say(['fred', 'hello']);
// => 'fred says hello'

var numbers = Promise.all([
  Promise.resolve(40),
  Promise.resolve(36)
]);

numbers.then(_.spread(function(x, y) {
  return x + y;
}));
// => a Promise of 76