TypeScript
I've heard there's a stricter version of JavaScript that catches mistakes early. What is it?
user.nmae instead of user.name, TypeScript can flag it before the page runs when the object type is known. It checks declared code contracts; passing those checks does not prove the product logic is right.const user = { name: "Alex" }title.textContent = user.nmaeconst user: User = { name: "Alex" }title.textContent = user.nmaeTypeScript is like a spell-checker for code: it catches mistakes like this early, but it cannot decide whether your product logic is right.
The same typo: The code asks for nmae when the declared property is name.
JavaScript finds out later: Without an extra check, the page may reach that line and get undefined at runtime.
TypeScript flags the contract: It compares the code to the types you wrote, usually in the editor, before the code is run.
You can say this to an AI Agent
Define TypeScript types for profile and price data, remove misspelled fields and inconsistent shapes, and do not bypass them with any. After type checks pass, add discount-boundary tests because types cannot prove the formula.
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