Question Why or how do i make this code work

I was watching a tutorial on Youtube and I copied the code exactly the same but it gave me errors and I solved them but the code to jump doesn't work, I'm very new in Unity.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class PlayerControler : MonoBehaviour {
6.       bool canJump;
7.  
8.  
9.  
10.  
11.     // Start is called before the first frame update
12.     void Start()
13.     {
14.        
15.     }
16.  
17.     // Update is called once per frame
18.     void Update()
19.     {
20.         if(Input.GetKey("left"))
21.         {
22.             gameObject.transform.Translate(-50f * Time.deltaTime, 0, 0);
23.         }
24.         if(Input.GetKey("right"))
25.         {
26.             gameObject.transform.Translate(50f * Time.deltaTime, 0, 0);
27.         }
28.  
29.     }
30.  
31. // i think this is the part of the code that doesnt work
32.  
33. void ManageJump()
34. { if(gameObject.transform.position.y <= 0)
35.     {
36.         canJump = false;
37.     }
38.     if (Input.GetKey("up") && canJump && gameObject.transform.position.y < 10)
39.     {
40.         gameObject.transform.Translate(0, 50f * Time.deltaTime, 0);
41.  
42.     }
43.     else
44.     {
45.         canJump = false;
46.  
47.         if (gameObject.transform.position.y < 0)
48.         {
49.             gameObject.transform.Translate(0, 50f * Time.deltaTime, 0);
50.         }
51.     }
52. }
53.  
54. }

 

It seems a bit unlikely that this is all that was in the tutorial or you didn't finish it yet. Notice you have a method named ManageJump but nothing is actually calling it. Also as far as I can see canJump is never set to true.

 

thank u so much bro, i fix the problem thx