Let TypeScript infer common variable types.
Section: Primitive Types and Annotations
Rely on inference
typescript
typescript
const count = 10; // number
const title = "Hello"; // stringExplanation
Inference usually produces cleaner code than over-annotating every value.
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Related commands
Same sheet · prioritizing Primitive Types and Annotations
Annotate basic variables
Explicitly type strings, numbers, and booleans.
Annotate object shapes
Describe the expected properties of an object.
Restrict values with literal unions
Use exact string values for safer APIs.
Freeze literals with `as const`
Preserve readonly literal values for objects and arrays.