unity how to get the side ways velocity of a object code example

Example: unity how to get the side ways velocity of a object

Rigidbody rb = GetComponent<Rigidbody>();
Vector3 worldVelocity = rb.velocity;
Vector3 localVelocity = transform.InverseTransformVector(worldVelocity);
//This gives velocity in all directions sideways is on the x axis the thread gives more info