while Loop in Dart
A while
loop is a programming construct that allows you to execute a specific block of code as long as a certain condition is true
.
The syntax for a while
loop in Dart is as follows:
dart9123while (condition) {// Statements to be executed while a condition is `true`}
First, before entering the loop, the condition (which is enclosed in parentheses) is checked. If this condition is
true
, then the code inside the loop is executed;After executing the code inside the loop, the condition is checked again. If the condition is still
true
, the loop is executed again. This process continues until the condition becomesfalse
;Once the condition becomes
false
, the execution of the loop stops, and the program moves on to the code after the loop.
Example
main.dart
1234567void main() { int counter = 0; while (counter < 5) { print(counter); counter = counter + 1; } }
The while
loop will repeat as long as the value of the variable counter is less than 5
. The loop will repeat five times since the variable counter is initialized to 0
. Each time the loop repeats, the value of the variable counter will be incremented by 1
.
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