Answer:
EXAMPLE -
Create a variable and assign your age
var myage = 32;
type your age:
console.log(my age) ;
Notice that we did not type the actual numeric age. We used the variable instead. There wouldn’t be any purpose of declaring a variable if we were going to type 32 directly.
This makes the scrip more portable which means that the result on the screen is independent of the code console.log(myAge); . If we need to change our age all we have to do is to assign another number to the variable myAge and the output will change automatically. That’s the purpose of a variable.
Your issue is on line 19 in your if statement. In python, if you have more than one condition in an if statement, you have to explicitly mention it after the or.
Your if statement is
if again == "Y" or "y":
However, this will always return true because the second statement simply asks "y".
To correct this, simply change the if statement to:
if again == "Y" or again == "y":
This will correct your code.
Another thing to consider is to always convert a userinput (whenever possible) to one version, this can be accomplished in your code by converting "again" into one version by using the .lower function.
again = input("Would you like to draw a 3rd card? Y or N? ")
again = again.lower()
Hope this helps!
Answer: The difference between call by value and call by reference is that in call by value the actual parameters are passed into the function as arguments whereas in call by reference the address of the variables are sent as parameters.
Explanation:
Some examples are:
call by value
#include <stdio.h>
void swap(int, int);
int main()
{ int a = 10, b= 20;
swap(a, b);
printf("a: %d, b: %d\n", a, b);
}
void swap(int c, int d)
{
int t;
t = c; c = d; d = t;
}
OUTPUT
a: 10, b: 20
The value of a and b remain unchanged as the values are local
//call by reference
#include <stdio.h>
void swap(int*, int*);
int main()
{
int a = 10, b = 20;
swap(&a, &b); //passing the address
printf("a: %d, b: %d\n", a, b);
}
void swap(int *c, int *d)
{
int t;
t = *c; *c = *d; *d = t;
}
OUTPUT
a: 20, b: 10
due to dereferencing by the pointer the value can be changed which is call by reference
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