Static versus Dynamic Typing
Explore the core concepts of static and dynamic typing in programming languages. Understand how TypeScript applies static typing to JavaScript, providing error prevention and improved code analysis. This lesson helps you grasp typing strategies, their pros and cons, and sets the foundation for safer and more maintainable code.
We'll cover the following...
There are two different strategies for dealing with type information in a programming language at the most abstract level: statically or dynamically.
Statically Typed Languages
A language with static types requires that each variable will be assigned a type when it is first declared. The language expects to know the type of each value and uses that information to constrain what values can be assigned to that variable at compile time.
Different static languages have different requirements for how types are assigned. Some languages, like Java, require the type of every variable to be explicitly stated when the variable is declared. Other languages, like TypeScript, allow for type inference. In TypeScript, we can assign a variable ...