Dart Functions

In Dart, a function is a block of code that performs a specific task and can be called from other parts of the program. They can take parameters and return values, helping to organize and simplify code.

Project - Palindrome Checker

Write a function to check if a given string is a palindrome.

• A palindrome is a word, phrase, or sequence that reads the same backward as forward, e.g., madam or nurses run.
• Use the function to check if a given string is a palindrome. Print the answer to the console.

By the end of this day, you should have a good understanding of how to write and call functions in Dart.

Tips

• A function that takes parameters and returns a value.

int add(int a, int b) {
  return a + b;
}

This function takes two integer parameters, adds them together, and returns the result.

• Calling the function

void main() {
  int result = add(3, 4);
  print(result); // 7
}

This calls the add function with the arguments 3 and 4, stores the result in the “result” variable, and prints the result to the console.

• Experiment with different types of functions, such as functions that don’t return a value (void), or functions that take no parameters.

void greet() {
  print('Hello, world!');
}

void main() {
  greet(); // prints "Hello, world!" to the console
}

more projects

Resources

Here are some resources for Day 5: Dart Functions:

1. Dart.dev - Functions
2. Dart Tutorial - Functions

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