 She was launched on 15 March 1934, commissioned on 1 August 1935, completed on 27 November and entered service on 7 December.Completion was delayed when her boilers had to be rebuilt because of defective firebricks.When the "Le Fantasque"s entered service they were assigned to the newly formed 8th and 10th Light Divisions () which were later redesignated as scout divisions (); both divisions were assigned to the 2nd Light Squadron () at Brest.