Understanding The Dart Type System
Understanding The Dart Type System The Dart language is statically typed language: it uses a combination of static type checking and runtime checks to ensure that a variable’s value always matches the variable’s static type, sometimes referred to as sound typing. what are types? Types describe the type of data of object. Types are a useful feature because they force you to write clean code and avoid mistakes/ bugs. For example, an addition might only work with two numbers but not with two strings. With types, you can ensure that a certain code expression only accepts numbers and the compiler generates an undesired error if you pass wrong data. Built-in types The Dart language has following built-in types: numbers strings booleans lists (also known as arrays) sets maps runes (for expressing Unicode characters in a string) symbols Note: Every variable in Dart refers to an object which is an ...
Comments
Post a Comment