includes()
Determines whether or not a target is present within a given string, array or object. Unlike Array.prototype.includes(), this function differentiates between -0 and 0.
This function is valid in
v2.13.0 to v2.24.3.
This function has been downloaded 67 times.
Parameters
{Array|Object|string}
subject
The array, object or string in which target should be searched for.
{*}
target
The target value to search for within subject.
{number=}
opt_start
Optional
The position at which to start the search for strings or arrays. This will be ignored for objects. Negative values will be calculated from the end.
Returns
{boolean}
A boolean value indicating if target is present within subject at or after opt_start.
Required Function
This function directly requires the following function which is included automatically:
-
indexOf()
Gets the index of a specified target value in a string, array or an object. Unlike Array.prototype.indexOf(), this function works for finding NaN and differentiates between -0 and 0.