Awake vs. Start - Different execution order

Unity Engine
1

Hi I have two scripts (SimpleJS and SimpleCS). Simple JS is linked on the Empty GameObject.

//SimpleJS.js
private var csComponent;

function Start() {
	print("Simple JS Satrt");
	csComponent = gameObject.AddComponent("SimpleCS");
	csComponent.GetPointsLength();
	csComponent.SetNumberOfPoints(10);
	csComponent.GetPointsLength();
	}

second script:

//SimpleCS.cs
using UnityEngine;
using System.Collections;

public class SimpleCS : MonoBehaviour {

		public int[] Points; 
		
		void Start() {
			print("SimpleCS Start");
			Points = new int[0];
		}
		
		void GetPointsLength() {
			print("SimpleCS Points.LN: "+ Points.Length);
		}
		
		void SetNumberOfPoints(int newLn) {
			int[] newPoints = new int [newLn];
			for(int i=0; i < newLn; i++) {
				newPoints[i] = i;
			}
			Points = newPoints;
		}
			
}

There is problem. SimpleJS start block is processed first and after that is processed Start block from component. That means this in SimpleJS

csComponent.GetPointsLength();

is called, but Start Block from SimpleCS is not declared (ready). And unity tell me this:

Replacing Start() with Awake() in both scripts, everything is OK.

Any idea why Unity do that?

2

Here is some excellent info about Unity Script Execution Order, etc

http://answers.unity3d.com/questions/2710/what-is-the-general-use-of-awake-start-update-fixedupdate-lateupdate

And from a Wiki link in the post: