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What does "cache" mean in programming?
cache is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
A storage layer that holds copies of frequently accessed data so that future requests for that data are served faster. Caches reduce the load on databases and APIs.
Example
"Invalidate the cache after updating the user profile so the stale data is not served."
Word forms
| Form | Type | Meaning | Example |
|---|---|---|---|
| cache | noun | A storage layer that holds frequently accessed data for fast retrieval | "The response is served from the cache if it is less than five minutes old." |
| cache | verb (infinitive) | To store data in a cache for fast future access | "Cache the API response to avoid hitting the database on every request." |
| cached | past tense | Already stored in a cache | "The user profile is cached for 10 minutes." |
| caching | gerund | The practice of storing data for fast future retrieval | "Caching reduces database load significantly." |
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