remove duplicate mods
const mods: Mod[] = ['HD', 'DT', 'HR', 'DT']; removeDupe(mods); // => ['HD','DT','HR'] Copy
const mods: Mod[] = ['HD', 'DT', 'HR', 'DT']; removeDupe(mods); // => ['HD','DT','HR']
remove duplicate mods
Example