Want to get rid of delay() function, FastLED, PLEASE HELP

Projects Programming
6

…like these with a honking delay in the body:

    for(int i = 0; i < NUM_LEDS; i++) {
      leds[x][i] = CRGB::Red;
      FastLED.show();
      leds[x][i] = CRGB::Black;
      delay(100);                                          //THIS IS WHAT I WANT TO GET RID OF. 
    }

HTH

a7