KonsolScript:Tutorials:Looping

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Looping

Often times, there's a need to repeat a series of commands. This can be done with looping.

KonsolScript, supports two types of looping.

While statement

The while statement executes a series of commands written inside its scope. //syntax of while

 while(/* conditional*/) {
   //scope...
 }

The syntax is as simple as what's shown above. All you have to do is fill-up the blanks. :D

Let's say we want to repeatedly output "Hello!", we write Konsol:Log inside scope of while. //demonstrating while statement

 while(/* conditional*/) {
   //scope...
   Konsol:Log("Hello!")
 }

But the scope will only be executed when the conditional question answers yes. So, we need a conditional that leads to answer yes -- let's add 1 EQ 1. //demonstrating while statement (part 2)

 while(1 EQ 1) {
   //scope...
   Konsol:Log("Hello!")
 }

There you go. A while statement.

For statement

A for statement works just like while does. But for statement differ in syntax since a for loop counts how many times it has loop. //syntax of for statement

 for(init;/*conditional*/;next) {
   //scope...
 }

Looks more complicated, huh? Here's a simple demo. //demonstrating for statement function main() {

 Var:Number x;
 for(x=1; x LE 10; x++) {
   //scope...
   Konsol:Log("Hello!")
 }

} The sample above prints out "Hello!", 10 times. Var:Number x; First, we need to declare a variable to be used for counting. x=1; Then we have the init (from the word initialize). Here, we begin our counting. x LE 10; Then we need to provide the maximum number to count. We typed-in LE 10 since we only wanted to count from 1 to 10. x++ Then we have our counting method. x++ means we add 1 to x every loop.

 for(x=1; x LE 10; x++) {
   //scope...
 }

As a single-line command, what our code meant is to execute the commands in its scope while counting from 1 to 10. Once 10 is reached, execute for the last time the command/s in scope of for statement. Konsol:Log("Hello!") It so happen we only wanted to print "Hello!".

So there you have a for statement.

Last Words

We can actually count from 10 to 1. We just have to change the logic of the program. //demonstrating for statement counting downward function main() {

 Var:Number x;
 for(x=10; x GE 1; x--) {
   //scope...
   Konsol:Log("Hello!")
 }

} We can also do counting on while statement. //demonstrates counting with while statement function main() {

 Var:Number x;
 x=1;
 while(x LE 10) {
   //scope...
   Konsol:Log("Hello!")
   x++;
 }

} And of course, it could do some countdown too. Choose whatever looks more elegant to you.