LPUSHX

    1. dragonfly> LPUSH mylist "World"
    2. dragonfly> LPUSHX mylist "Hello"
    3. (integer) 2
    4. dragonfly> LPUSHX myotherlist "Hello"
    5. (integer) 0
    6. 1) "Hello"
    7. 2) "World"
    8. dragonfly> LRANGE myotherlist 0 -1
    9. (empty array)