Strings Interpolation in Dart PRO

Using the $ character or the ${ }  expression within single or double quotes we can convert a non-string value or an expression into string. When converting a single variable into string we will just prefix that variable with the $ sign. When converting an expression we will write it within the curly braces of ${ }.

void main() 
{
  var numA = 3;
  var numB = 4;
  print("$numA + $numB = ${numA+numB}");
}

The following video clip shows the execution of this code sample, overviews it and explains it.

Share:

The Visitor Design Pattern

The Visitor Design Pattern

The visitor design pattern allows us to add operations to objects that already exist without modifying their classes and without extending them.

The Beauty of Code

Coding is Art! Developing Code That Works is Simple. Develop Code with Style is a Challenge!

Update cookies preferences