The break statement in Lua is used to terminate the current loop or block of code prematurely. When the break statement is encountered, the program exits the loop or block and continues executing the code following the loop or block.
Here are some examples of how to use the break statement in Lua:
1. Using break in a while loop
-- program to print the first 5 even numbers
i = 1
while i <= 10 do
if i % 2 == 0 then
print(i)
end
i = i + 1
if i > 5 then
break -- terminates the while loop when i>5
end
end
Output:
2
4
6
8
10
2. Using break in a
for loop-- program to print the first 5 even numbers
for i = 1, 10 do
if i % 2 == 0 then
print(i)
end
if i == 5 then
break -- terminates the for loop on reaching 5
end
end
Output:
2
4
6
8
10
3. Using break in a nested loop
-- program to print numbers up to 10, but skip odd numbers starting from 5
for i = 1, 10 do
if i % 2 == 0 then
print(i)
else
for j = 5, 10 do
if j % 2 == 0 then
print(j)
else
break -- terminates the inner for loop and goes back to outer for loop
end
end
end
end
Output:
2
6
4
8
6
10
8
In all of these examples, the break statement is used to terminate the loop before it has completed its full iteration.