WS2811 FastLED basic does this shit work sketch

gistfile1.txt

#include "FastLED.h"
#define NUM_LEDS 50

CRGB leds[NUM_LEDS];
static byte initialHue = 0;
byte changeInHue = 255 / NUM_LEDS;

void setup() { FastLED.addLeds<WS2811, 6>(leds, NUM_LEDS); }
void loop() {
  //leds[0] = CRGB::Green; FastLED.show(); delay(300);
  leds[0] = CRGB::Blue; FastLED.show(); delay(300);
  leds[0] = CRGB::Black; FastLED.show(); delay(300);
  leds[30] = CRGB::Red; FastLED.show(); delay(300);
  leds[30] = CRGB::Black; FastLED.show(); delay(300);
  leds[49] = CRGB::Green; FastLED.show(); delay(300);
  leds[49] = CRGB::Black; FastLED.show(); delay(300);

  //fill_solid( leds, NUM_LEDS, CRGB::Red);
  
  //fill_rainbow( leds, NUM_LEDS, initialHue, changeInHue);
  //FastLED.show();
  //delay(1000);
  //FastLED.clear();
}