Type-checking
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What is Type-checking?
The process of verifying that the data types used in a program (like ensuring a number isn't treated as text) are strictly correct, preventing runtime crashes.
In dynamic languages like JavaScript, a variable meant to hold an integer can accidentally be assigned text, causing the program to crash when run. Type-checking (via tools like TypeScript) enforces these constraints statically before the code runs. If a function expects a number, the type-checker throws an explicit error during development if you try to pass it a string.
How it relates to Orbit
Orbit can run a configured type-check script as part of a project’s QA checks. See QA Intelligence for details.
When you would use it
You rely on type-checking to significantly reduce unpredictable bugs in large applications, ensuring that different modules pass data to each other in the exact expected format.
Common operations
- Defining strict interfaces for API responses to guarantee data structures.
- Catching basic logic errors in the IDE before the code is compiled.