Remember the infinite while loop? Well, there is also such a thing called the infinite for loop.
Here is an example:
var i = 0
while i < 10 {
print(i)
i -= 1
i += 1
}
This is what happens during this loop:
0. Creates and initializes a variable i = 0
1. First iteration:
a. Is i < 10 true? <=> Is 0 < 10 true? Yes.
b. Run the code inside {}:
1) print(i) => Output: 0
2) i -= 1 => i becomes -1
3) i += 1 => i becomes 0 again
2. Second iteration:
a. Is i < 10 true? <=> Is 0 < 10 true? Yes.
b. Run the code inside {}:
1) print(i) => Output: 0
2) i -= 1 => i becomes -1
3) i += 1 => i becomes 0 again
3. Third iteration:
a. Is i < 10 true? <=> Is 0 < 10 true? Yes.
b. Run the code inside {}:
1) print(i) => Output: 0
2) i -= 1 => i becomes -1
3) i += 1 => i becomes 0 again
...
Assignment
Follow the Coding Tutorial and let's practice with infinite for loops!
Hint
Look at the examples above if you get stuck.
Free plan: 30 tutor messages. Premium is unlimited.
Saved
Ctrl + Enter to check