how to not show up in inspector unity code example

Example 1: unity hide in inspector

using UnityEngine;

public class Example : MonoBehaviour
{
    // Make the variable p not show up in the inspector
    // but be serialized.
    [HideInInspector]
    int p = 5;
}

Example 2: unity hide in inspector

[HideInInspector]
public float myVar;