Date

“Collection” Methods

_.includes(collection, value, [fromIndex=0])

source npm package

Checks if value is in collection. If collection is a string, it's checked for a substring of value, otherwise SameValueZero is used for equality comparisons. If fromIndex is negative, it's used as the offset from the end of collection.

引入版本

0.1.0

参数
collection (Array|Object|string) : The collection to inspect.
value (*) : The value to search for.
[fromIndex=0] (number) : The index to search from.

返回值
(boolean) : Returns true if value is found, else false.

示例
_.includes([1, 2, 3], 1);
// => true
 
_.includes([1, 2, 3], 1, 2);
// => false
 
_.includes({ 'a'1, 'b'2 }, 1);
// => true
 
_.includes('abcd', 'bc');
// => true