Using function.call to Call a Function
Completion requirements
In JavaScript, there is a way to call a function by using the .call() method. The syntax of the .call() is as follows:
functionName.call(thisArg, arg1, arg2, ….) // arg1 and arg2 are optional
functionName: Refers to the function being called and. thisArg specifies the object that this references inside the invoked function.
Syntax
call(thisArg) call(thisArg, arg1) call(thisArg, arg1, /* …, */ argN)
Parameters
thisArg-
The value to use as
thiswhen callingfunc. If the function is not in strict mode,nullandundefinedwill be replaced with the global object, and primitive values will be converted to objects. arg1, …, argNOptional-
Arguments for the function.
Return value
The result of calling the function with the specified this value and arguments.