not able to figure out what is wrong with my nodemcu code

#include <ESP8266WiFi.h>
#include <FirebaseArduino.h>

//Firebase settings
#define FIREBASE_HOST "..........firebaseio.com/"     //cant share
#define FIREBASE_AUTH "..............."               //cant share   

//Wi-Fi settings
#define WIFI_SSID "kello"
#define WIFI_PASSWORD "8888"

//Define trigger and echo digital pins
const int trigPin = 4;
const int echoPin = 3;

// The amount of time the ultrassonic wave will be travelling for
long duration = 0;
// Define the distance variable
double distance = 0;

void setup()
{
     Serial.begin(9600);
    // Connect to Wi-Fi
    Serial.print("Wi-Fi...");
    WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
    Serial.print("Connecting...");
    while (WiFi.status() != WL_CONNECTED)
    {
        Serial.print(".");
        delay(500);
    }
    Serial.println();
    Serial.print("Connected to: ");
    Serial.println(WiFi.localIP());

    Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);

    // Ultrasonic sensor, set echo as Input and trigger as Output
    pinMode(trigPin, OUTPUT);
    pinMode(echoPin, INPUT);


}

void loop()
{

    getDistance();
    // Prints the distance value to the serial monitor
    Serial.print("Distance: ");
    Serial.println(distance);

    delay(500);
}

void getDistance()
{
    // Clear trigPin
    digitalWrite(trigPin, LOW);
    delayMicroseconds(2);

    // trigPin HIGH por 10ms
    digitalWrite(trigPin, HIGH);
    delayMicroseconds(10);
    digitalWrite(trigPin, LOW);

    //Reads echoPin, returns the travel time of the sound wave in ms
    duration = pulseIn(echoPin, HIGH);

    // Calculating the distance, in centimeters, using the formula described in the first section.
    distance = duration * 0.034 / 2;

    // Sends the distance value to Firebase
    Firebase.setFloat("distance", distance);

}

I am a computer graduate so i do not have much knowledge about nodemcu. I saw some documentations about nodemcu. I want to show the data obtained by the ultrasonic distance sensor in the realtime database of firebase. But i am not able to figure out why i am not able to get output of serial.println(distance) in the com5 window even though the code compiles successfully . This is what i get when running the program

Executable segment sizes:


IROM   : 330560          - code in flash         (default or ICACHE_FLASH_ATTR) 


IRAM   : 27760   / 32768 - code in IRAM          (ICACHE_RAM_ATTR, ISRs...) 


DATA   : 1408  )         - initialized variables (global, static) in RAM/HEAP 


RODATA : 2044  ) / 81920 - constants             (global, static) in RAM/HEAP 


BSS    : 25160 )         - zeroed variables      (global, static) in RAM/HEAP 


Sketch uses 361772 bytes (34%) of program storage space. Maximum is 1044464 bytes.
Global variables use 28612 bytes (34%) of dynamic memory, leaving 53308 bytes for local variables. Maximum is 81920 bytes.
esptool.py v2.8
Serial port COM5
Connecting....
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC: ec:fa:bc:c1:44:d2
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Auto-detected Flash size: 4MB
Compressed 365920 bytes to 264395...

Writing at 0x00000000... (5 %)
Writing at 0x00004000... (11 %)
Writing at 0x00008000... (17 %)
Writing at 0x0000c000... (23 %)
Writing at 0x00010000... (29 %)
Writing at 0x00014000... (35 %)
Writing at 0x00018000... (41 %)
Writing at 0x0001c000... (47 %)
Writing at 0x00020000... (52 %)
Writing at 0x00024000... (58 %)
Writing at 0x00028000... (64 %)
Writing at 0x0002c000... (70 %)
Writing at 0x00030000... (76 %)
Writing at 0x00034000... (82 %)
Writing at 0x00038000... (88 %)
Writing at 0x0003c000... (94 %)
Writing at 0x00040000... (100 %)
Wrote 365920 bytes (264395 compressed) at 0x00000000 in 23.4 seconds (effective 125.3 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...

Please help me out and let me know if more information is required.

What you are showing is not the serial console output, but the content of the compiler result.

When you open the serial console window in ArduinoIDE SerialMonitor right upper corner -> the little button right of the text a new window opens.

If not you have selected the wrong comport -> select the right one in Tools->port

If it opens, check the baud rate in the left lower corner it should match the baud rate in your program

Serial.begin(9600);

If it is the same, press the reset button on your NodeMCU and post the content here (edit your question)