Описание тега break

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A break statement is a flow-control feature provided by most programming languages that allows for an early exit from a loop; once a break statement is reached, its enclosing loop is immediately exited.

Using break will immediately exit the loop without completing the current iteration, in this example when i is 3 the loop will finish without any other line in the loop being executed.

Example (Python):

for i in range(1, 6):
    print(i)
    if i == 3:
        break
    print("do stuff")
print("after the loop")

Output:

1
do stuff
2
do stuff
3
after the loop

For more information see loops