You can do the same operation using the while loop. In the for loop tutorial a variable was incremented 10 times and the value printed out. This is often useful when you must perform some code but then want to test to see if you should carry on repeating it.Īrduino While loop examples While loop example 0 to 9 Note: The do while loop is always run at least once. Of code that follows the expression is repeated. If the expression is true (not zero) then the block The while keyword uses the expression (within the parentheses following the the while order of the words "while" and "do" defines these concepts. This statement is one of the simplest ways to stop a void loop function. Have to think about "how to do it"! The structure of the code i.e. The void loop can also be stopped using exit() statement. It is true that you can use the for-loop to do both of these actions -īut it is far easier to use the while loop construct because you don't Always execute code first then test a variable for the exit condition.Execute code until a variable reaches a set value.The most useful aspect of this loop construct is that it provides implementation of twoĮasy concepts that you may want to use when writing code: Increment the varible anywhere within the loop Outside the while loop using normal variable intialisation and you Not have the initialiser or incrementer sections - you set these up You conditionally repeat a block of code. The while loop is another loop control structure that lets
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