Why is the Semicolon Important?

1) It indicates the end of a statement.
2) It is a mandatory part of the syntax in Dart.
3) Without it, Dart will throw a syntax error.

Example

void printMessage() {
  print("Welcome to Dart!");  // Semicolon terminates the statement
}

In this example :

1) The function printMessage() contains a statement where the print() function is called.
2) The semicolon ends the statement inside the function body.

Another example for better understanding

Imagine you are building an app where you store and display information about a blog. You will need to store values like the blog name, author, and number of posts. Here’s how you would write it:

void main() {
  var blogName = "Flutter";  // Name of the blog
  var author = "Jony";  // Author of the blog
  var numberOfPosts = 20;  // Number of posts published
  
  // Printing the details
  print("Blog: $blogName");
  print("Author: $author");
  print("Total Posts: $numberOfPosts");
}

In this example :

1) We are creating three variables: blogName, author, and numberOfPosts.
2) Each of these statements ends with a semicolon, which tells Dart that the statement has ended.