Delay for jump with the default fps script

I have the defaul unity fps script, i whant to create a delay for jump

I don’t know about your code But You Can Use Coroutine
Something like this:

    void Update()
    {
        if(Input.GetKeyDown(KeyCode.Space))
        {
             StartCoroutine(DelaywithJump());
        }
    }


    IEnumerator DelaywithJump()
    {
        yield return new WaitForSeconds( amountofdelay );
        //Do Jump Function
    }