Actionscript

trace

var message = "Hi there";
trace (message);                                    // prints "Hi there"

var message = "yellow";
trace ("big " + message + " truck");                // prints "big yellow truck"

conditionals

var message = "yellow";
trace ("big " + message + " truck");                // prints "big yellow truck"
if (message == "yellow") {
trace ("yes, i did say big yellow truck.");        // prints "yes, i did say big yellow truck"
}

loops

this sequence... trace (101); trace (102); trace (103); trace (104); trace (105);

is equal to: var x = 101; trace (x); x = x + 1; trace (x); x = x + 1; trace (x); x = x + 1; trace (x); x = x + 1; trace (x);

is also equal to: var x = 101; while (x <= 105) { // as long as x is less than 105... trace (x); x = x + 1; // ...continue to trace x but add one each time }

they all print: 101 102 103 104 105