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Dart Building from parts

Programmatically generating a String is best accomplished with a StringBuffer. A StringBuffer doesn't generate a new String object until toString() is called.

var sb = new StringBuffer();
sb.write("Use a StringBuffer");
sb.writeAll(["for ", "efficient ", "string ", "creation "]);
sb.write("if you are ")
sb.write("building lots of strings");
// or you can use method cascades:
 ..write("Use a StringBuffer")
 ..writeAll(["for ", "efficient ", "string ", "creation "])
 ..write("if you are ")
 ..write("building lots of strings");
var fullString = sb.toString();
// Use a StringBufferfor efficient string creation if you are building lots of strings
sb.clear(); // all gone!


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