Parameter
A parameter is the name of a variable passed into a function. Parameters allow functions to accept inputs. An argument, on the other hand, is the actual value of the variable (also known as the parameter) passed into a function.
Example
Suppose we have a function called tripleThis()
:
function tripleThis(x) {return x * 3;}tripleThis(6);
The parameter is x
since it is the variable. The argument is 6
since it is the actual value.