Error CS1022

So i was on youtube seeing a tutorial of how to make a platformer unity game i did this code and it dosen't seem to work

using UnityEngine;
using System.Collections;

public class PlayerController : MonoBehaviour {

public float moveSpeed;
public float jumpHeight;

// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {

if (Input.GetKeyDown) (KeyCode.Space)
[
GetComponent<Rigidbody2D>().velocity = new Vector2 {1, jumpHeight};

}
}
}

 

Your code was formatted wrong and did not properly close all braces. This should work:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class PlayerController : MonoBehaviour
5. {
6.     public float moveSpeed;
7.     public float jumpHeight;
8.  
9.     // Use this for initialization
10.     void Start ()
11.     {
12.     }
13.  
14.     // Update is called once per frame
15.     void Update ()
16.     {
17.         if (Input.GetKeyDown) (KeyCode.Space)
18.         {
19.             GetComponent<Rigidbody2D>().velocity = new Vector2 {1, jumpHeight};
20.         }
21.     }
22. }

 

It says unexpected symbol {