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DART Cookbook

DART Cookbook

By : Ivo Balbaert
4 (2)
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DART Cookbook

DART Cookbook

4 (2)
By: Ivo Balbaert

Overview of this book

If you are a Dart developer looking to sharpen your skills, and get insight and tips on how to put that knowledge into practice, then this book is for you. You should also have a basic knowledge of HTML, and how web applications with browser clients and servers work, in order to build dynamic Dart applications.
Table of Contents (13 chapters)
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12
Index

Concatenating strings

Concatenation can be done in a variety of ways in Dart (refer to the concat_trim_strings file, and download it from www.packtpub.com/support).

How to do it...

Strings can be concatenated as follows:

  String s1 = "Dart", s2 = "Cook", s3 = "Book";
  var res = "Dart" " Cook" "Book";        (1)
  res = "Dart"  " Cook"
              "Book";        (2)
  res = s1 + " " + s2 + s3;        (3)
  res = "$s1 $s2$s3";        (4)
  res = [s1, " ", s2, s3].join();        (5)

  var sb = new StringBuffer();        (6)
  sb.writeAll([s1, " ", s2, s3]);
  res = sb.toString();
  print(res); // Dart CookBook

How it works...

Adjacent string literals are taken together as one string as shown in line (1), even if they are on different lines as shown in line (2). The + operator does the same thing (3), as well as string interpolation (4), which is the preferred way...

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