Quick Start Guide

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// Your first BanglaCode program!
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dekho("Namaskar, BanglaCode!");
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// Variables
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dhoro naam = "World";
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dekho("Hello,", naam);

./banglacode hello.bang

Namaskar, BanglaCode!
Hello, World

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// Numbers
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dhoro age = 25;
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dhoro pi = 3.14159;
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// Strings
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dhoro name = "Rahim";
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dhoro greeting = 'Namaskar';
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// Booleans
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dhoro isStudent = sotti;    // true
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dhoro isWorking = mittha;   // false
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// Null
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dhoro data = khali;         // null
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// Arrays
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dhoro numbers = [1, 2, 3, 4, 5];
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dhoro mixed = ["hello", 42, sotti];
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// Maps (objects)
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dhoro person = {
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    naam: "Ankan",
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    boyosh: 25,
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    city: "Kolkata"
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};

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// Arithmetic
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dhoro sum = 10 + 5;      // 15
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dhoro diff = 10 - 5;     // 5
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dhoro prod = 10 * 5;     // 50
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dhoro quot = 10 / 5;     // 2
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dhoro rem = 10 % 3;      // 1
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dhoro power = 2 ** 3;    // 8
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// String concatenation
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dhoro fullName = "Rahim" + " " + "Khan";
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// Comparison
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dhoro isEqual = 5 == 5;      // sotti
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dhoro isGreater = 10 > 5;    // sotti
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// Logical operators
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dhoro result = sotti ebong mittha;   // and -> mittha
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dhoro result2 = sotti ba mittha;     // or -> sotti
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dhoro result3 = na sotti;            // not -> mittha

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dhoro score = 85;
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jodi (score >= 90) {
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    dekho("Grade: A");
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} nahole jodi (score >= 80) {
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    dekho("Grade: B");
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} nahole jodi (score >= 70) {
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    dekho("Grade: C");
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} nahole {
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    dekho("Grade: F");
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}

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dhoro i = 0;
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jotokkhon (i < 5) {
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    dekho("Count:", i);
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    i = i + 1;
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}

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ghuriye (dhoro i = 1; i <= 5; i = i + 1) {
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    dekho("Number:", i);
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}

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// Simple function
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kaj greet(naam) {
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    dekho("Namaskar,", naam);
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}
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greet("Rahim");  // Namaskar, Rahim
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// Function with return value
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kaj add(a, b) {
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    ferao a + b;
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}
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dhoro result = add(5, 3);
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dekho("Sum:", result);  // Sum: 8
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// Recursive function
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kaj factorial(n) {
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    jodi (n <= 1) {
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        ferao 1;
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    }
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    ferao n * factorial(n - 1);
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}
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dekho("5! =", factorial(5));  // 5! = 120

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sreni Person {
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    // Constructor
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    shuru(naam, boyosh) {
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        ei.naam = naam;
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        ei.boyosh = boyosh;
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    }
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    // Method
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    kaj introduce() {
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        dekho("Hi, I am", ei.naam, "and I am", ei.boyosh, "years old");
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    }
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    kaj birthday() {
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        ei.boyosh = ei.boyosh + 1;
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        dekho(ei.naam, "is now", ei.boyosh);
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    }
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}
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// Create instance
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dhoro person = notun Person("Ankan", 25);
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person.introduce();  // Hi, I am Ankan and I am 25 years old
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person.birthday();   // Ankan is now 26

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chesta {
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    dhoro result = 10 / 0;
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} dhoro_bhul (error) {
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    dekho("Error occurred:", error);
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} shesh {
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    dekho("Cleanup complete");
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}
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// Throw custom error
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kaj validateAge(age) {
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    jodi (age < 0) {
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        felo "Age cannot be negative";
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    }
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    ferao sotti;
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}

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// Output
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dekho("Hello World");
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// Type checking
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dekho(dhoron(42));       // "int"
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dekho(dhoron("hello"));  // "string"
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// String operations
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dekho(dorghyo("hello"));           // 5
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dekho(boroHater("hello"));         // "HELLO"
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dekho(chotoHater("HELLO"));        // "hello"
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// Array operations
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dhoro arr = [3, 1, 4, 1, 5];
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dhokao(arr, 9);                    // Push
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dekho(dorghyo(arr));               // 6
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dekho(saja(arr));                  // [1, 1, 3, 4, 5, 9]
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// Math
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dekho(borgomul(16));     // 4 (square root)
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dekho(niratek(-5));      // 5 (absolute value)
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dekho(kache(3.7));       // 4 (round)