Example of Coding on haXe – Part 1

In this example, your will see: Trace, enum, variables (integer, boolean, void, string, float, dynamic), null, array iterable, for loop, if/else.

NOTIFICATION: These examples are provided for educational purposes. Using this code is under your own responsibility and risk. The code is given ‘as is’. I do not take responsibilities of how they are used.

Actual Example:
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Code Example: Example_1.hx

// enum go outside the class
enum Enum_Colors {
	blue;
	red;
	yellow;
}

class Example_1 {

	static function main(){

		// Integers
		var variable_integer : Int;
		variable_integer = 0;
		trace('1) variable_integer = ' + variable_integer);
		variable_integer = -134;
		trace('2) variable_integer = ' + variable_integer);
  	variable_integer = 0xFF00;
		trace('3) variable_integer = ' + variable_integer);

		// Float
		var variable_float : Float;
	  variable_float = 123.0;
		trace('4) variable_float = ' + variable_float);
	  variable_float = .14179;
		trace('5) variable_float = ' + variable_float);
	  variable_float = 13e50;
		trace('6) variable_float = ' + variable_float);
	  variable_float = -1e-99;
		trace('7) variable_float = ' + variable_float);

		// String
		var variable_string : String;
	  variable_string = 'hello';
		trace('8) variable_string = ' + variable_string);
    variable_string = 'hello \'world\' !';
    trace('9) variable_string = ' + variable_string);
	  variable_string = 'hello 'world' !';
	  trace('10) variable_string = ' + variable_string);

		// Boolean
		var variable_bool : Bool;
	  variable_bool = true;
	  trace('11) variable_bool = ' + variable_bool);
  	variable_bool = false;
		trace('12) variable_bool = ' + variable_bool);

	  // Dynamic
	  var variable_dynamic : Dynamic;
	  variable_dynamic = 7;
	  trace('13) variable_dynamic = ' + variable_dynamic);
	  variable_dynamic = 'Now, variable_dynamic holds a string';
	  trace('14) variable_dynamic = ' + variable_dynamic);

	  // Assigning null
	  var variable;
	  variable = null;
	  trace('15) variable = ' + variable);

		// Using enum constants
		var variable_colors : Enum_Colors;
		variable_colors = blue;
		if (variable_colors == blue){
			trace('16) variable_colors = blue');
		}else{
			trace('16) variable_colors is not blue');
		}

		variable_colors = yellow;
		if (variable_colors == blue){
			trace('17) variable_colors = blue');
		}else{
			trace('17) variable_colors is not blue');
		}

		// Using Arrays (in haxe, arrays are iterable)
		var integer_array : Array<Int> = [1,2,3,4];

		// You can loop through integer_array's members directly with a for..in loop
		var count : Int = 0;
		for (i in integer_array){
			trace('18) integer_array[' + count++ + ']: ' + i);
		}

		var num : Int = 4;
		for (i in 0...num)
			trace('19) integer_array[' + i + ']: ' + integer_array[i]);

		for (i in 0...4)
			trace('20) integer_array[' + i + ']: ' + integer_array[i]);

		// This would not work: for (i in 3...0)
		var i : Int = 3;
		while (i >= 0){
			trace('21) integer_array[' + i + ']: ' + integer_array[i]);
			--i;
		}

  }

}

If you encounter any problems or errors, please let me know by providing an example of the code, input, output, and an explanation. Thanks.

© 2010 – 2011, Alejandro G. Carlstein Ramos Mejia. All rights reserved.