What is interpolation in flutter?

String interpolation is the process of evaluating a string literal containing one or more placeholders, yielding a result in which the placeholders are replaced with their corresponding values . A little snippet to interpolate a Map in a string in Dart and Flutter using double curly braces syntax (can be easily changed) …27 Mar 2020

Concatenation allows you to combine to strings together and it only works on two strings. Swift uses string interpolation to include the name of a constant or variable as a placeholder in a longer string, and to prompt Swift to replace it with the current value of that constant or variable.

You can access the value of an expression inside a string by using ${expression} . var greeting = “Hello”; var person = “Rohan”; print(“${greeting}, ${person}!”); // prints “Hello, Rohan!”14 Kas 2012

Append or Concatenate two Strings in Dart To append two strings in Dart, use concatenation operator + . + accepts two strings as operands and returns concatenated string.