The collection to inspect.
The value to search for.
Optional fromIndex: numberThe index to search from.
@param- {Object} [guard] Enables use as an iteratee for methods like reduce.
Optional Optional guard: anyOptional Returns true if value is found, else false.
5.12.0
includes([1, 2, 3], 1);
// => true
includes([1, 2, 3], 1, 2);
// => false
includes({ 'a': 1, 'b': 2 }, 1);
// => true
includes('abcd', 'bc');
// => true
Checks if
valueis incollection. Ifcollectionis a string, it's checked for a substring ofvalue, otherwiseSameValueZerois used for equality comparisons. IffromIndexis negative, it's used as the offset from the end ofcollection.