How do you end a while loop in Perl?

How do you end a while loop in Perl?

The Perl last statement is used inside a loop to exit the loop immediately. The last statement is like the break statement in other languages such as C/C++, Java.

What is the use of last in Perl?

The last keyword is a loop-control statement that immediately causes the current iteration of a loop to become the last. No further statements are executed, and the loop ends. If LABEL is specified, then it drops out of the loop identified by LABEL instead of the currently enclosing loop.

Do While loop always checks the loop the condition at the end of each iteration?

while loop statement checks the condition at the end of each iteration, the code block inside the loop always executes at least once. Also, do is not a loop block. Therefore, you need to use other statements to control the loop including next , last and redo statements.

How do you get the last element of an array in Perl?

Perl also allows you to access array elements using negative indices. Perl returns element referred to by a negative index from the end of the array. For example, $days[-1] returns the last element of the array @days .

What we put at the last of the loop?

The semicolon at the end of the for-loop means it has no body.

How do I continue in Perl?

The continue keyword can be used after the block of a loop. The code in the continue block is executed before the next iteration (before the loop condition is evaluated). It does not affect the control-flow. The continue keyword has another meaning in the given – when construct, Perl’s switch – case .

Do while loop ends when test expression returns?

This means that the code must always be executed first and then the expression or test condition is evaluated. If the expression is false, the loop terminates and control transfers to the statement following the do-while loop.

How do you find the last index of the array?

lastIndexOf() The lastIndexOf() method returns the last index at which a given element can be found in the array, or -1 if it is not present. The array is searched backwards, starting at fromIndex .