Safer JavaScript with the Maybe Type
Andy Van Slaars
JavaScript’s dynamic typing makes it incredibly flexible. That flexibility can lead to trouble though. When values have the potential to change types or to end up as null or undefined, that can lead to runtime errors in our code or bizarre bugs that take forever to track down because of type coercion. To battle this, we end up with code that is littered will conditionals for null or undefined values and type checks, making the core logic harder to read and refactor later.
The Maybe encapsulates the type checking and guards against missing values for us. With Maybe in our toolbelt, we can keep our functions free of all the guardrails, outsource that work to the Maybe and keep our business logic free of all the clutter.
Learner Reviews
- What did you like about this course?
Excellent course. Clear and concise.
Justin Macdonald6 years ago - What was your strongest take away from this course?
Functional programming: Combining the power of abstract mathematics with the intuitive clarity of abstract mathematics
Prodigious7 years ago - What did you like about this course and how will it help you?
it goes step by step so it is easy to follow. I came from ramda but not an expert :)
webcuisine7 years ago - What did you like about this course and how will it help you?
great course, most of the stuff was new for me
Nikoloz Garibashvili7 years ago - What did you like about this course and how will it help you?
Really enjoyed this course. It would be great to see this in a practical application ie paired with redux/react. Also would have been great to see this applied more complex data structure like collections or arrays.
Peter7 years ago - What did you like about this course and how will it help you?
The course is very informative and well made and I hope it will help me improve my JavaScript code.
Stefan Frede7 years ago
Course Content
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