devboy

var circle = { x: 10, y: 10, radius: 10 };
var rect = { x: 20, y: 20, width: 100, height: 100 };

function move( objectWithXAndY: { x: Int, y: Int } )
{
	objectWithXAndY.x += 5;
	objectWithXAndY.y += 5;
}

// both calls will work

devboy

var circle: { x: Int, y: Int, radius: Int };
circle = {x: 10, y: 10, radius: 10};

devboy

var circle = { x: 100, y: 100, radius: 50 }

circle.x = 90; // will work fine
circle.y = "100"; // error: String should be Int
		
circle = { x: 90, y: 80, radius: 10 } // will work fine
circle = "circle"; // error: String should be { y : Int, x : Int, radius : Int }

devboy

var circle = { x: 100, y: 100, radius: 50 };
type(circle); // returns { y : Int, x : Int, radius : Int }

devboy

package org.devboy;

import haxe.macro.Type;
import neko.Lib;
import haxe.macro.Expr;
import haxe.macro.Context;

class Funk 
{
	@:macro public static function partial( expressions: Array<Expr> ): Expr

devboy

function multiply( x: Float, y: Float ): Float
{
  return x * y;
}

// now we create a partial function, with a preset parameters

var multiplyByTen = Funk.partial( multiply, 10 );

// now we can call multiplyByTen to multiply a number by ten

devboy

package org.devboy;

import haxe.macro.Type;
import neko.Lib;
import haxe.macro.Expr;
import haxe.macro.Context;

class Funk 
{

devboy

5.times( callback( trace, "Hello" ) ) //traces Hello 5 times

devboy

5.times( callback( trace, "Hello" ) ) //traces Hello 5 times

devboy

import org.devboy.ArrayUtils;
using org.devboy.ArrayUtils;
type( ArrayUtils.delete_if ); // Array<T> -> (T -> Bool) -> Array<T> 
type( [].delete_if ); // (T -> Bool) -> Array<T>