Printing object properties with JavaScript array

Question

here's my code, I was trying to print the price property of worker and soldier objects

var army = [worker, soldier];

var worker={
	name:'Worker',
	price : 10,
	ammount : 0,
	award:0,
	//award : 5/11,
	time : 1000,
	defense: 10,
	attack: 5
}

var soldier={
	name:'Soldier',
	price : 50,
	ammount : 0,
	award:0,
	//award : 0.75,
	time : 1000,
	defense: 30,
	attack: 15
}

for (var i=0; i<army.length; i++){
	alert(this.price);
}

Do you have any idea how can I get into price property of these objects?

console.log(this) will show you why it does not work. It should be army[i].price — epascarello
– epascarello, Commented Jul 10, 2015 at 19:15

Samuel Liew · Accepted Answer · 2015-07-10 19:07:37Z

1

You are assigning undefined variables to the army array, before the objects are initialized. Move that first line to after the worker and soldier.

Also, the variable this in a for-loop doesn't refer to anything. Use army[i] instead, or you could assign var this = army[i];.

var worker = {
  name: 'Worker',
  price: 10,
  ammount: 0,
  award: 0,
  //award : 5/11,
  time: 1000,
  defense: 10,
  attack: 5
}

var soldier = {
  name: 'Soldier',
  price: 50,
  ammount: 0,
  award: 0,
  //award : 0.75,
  time: 1000,
  defense: 30,
  attack: 15
}

var army = [worker, soldier];

for (var i = 0; i < army.length; i++) {
  alert(army[i].price);
}

edited Jul 10, 2015 at 19:07

answered Jul 10, 2015 at 19:05

Samuel Liew

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Comments

Andy · Accepted Answer · 2015-07-10 19:07:07Z

0

Define the army array after you create the other arrays:

var army = [worker, soldier];

Then use army[i] to get the price from each object:

for (var i=0; i<army.length; i++){
    alert(army[i].price);
}

answered Jul 10, 2015 at 19:07

Andy

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