How to use 74HC164 shift register with Arduino

int Data_pin = 2; 
int Latch_pin = 4;//for 595 only
Int Clock_pin = 3;

int digits [10][8]{
  {1,1,1,1,1,1,0,0}, //dig.0
  {0,1,1,0,0,0,0,0}, //dig.1
  {1,1,0,1,1,0,1,0}, //dig.2
  {1,1,1,1,0,0,1,0}, //dig.3
  {0,1,1,0,0,1,1,0}, //dig.4
  {1,0,1,1,0,1,1,0}, //dig.5
  {1,0,1,1,1,1,1,0}, //dig.6
  {1,1,1,0,0,0,0,0}, //dig.7
  {1,1,1,1,1,1,1,0}, //dig.8
  {1,1,1,1,0,1,1,0}, //dig.9
};

void setup() {  
  pinMode(Data_pin, OUTPUT);
  pinMode(Latch_pin, OUTPUT);
  pinMode(Clock_pin, OUTPUT);
}
void DisplayDigit(int Digit){
  // below line is needed for 74HC595 
  //digitalWrite(Latch_pin, LOW); 
  for (int i = 7; i>=0; i--){
    digitalWrite(Clock_pin,LOW);
    digitalWrite(Data_pin,!digits[Digit][i]); 
    digitalWrite(Clock_pin,HIGH);
    delay(100);
  }
  // below line is needed for 74HC595
  //digitalWrite(Latch_pin, HIGH); 
}


void loop() {
  for (int i=0;i<10;i++){  
    DisplayDigit(i);  
    delay(800);
  }
}