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GarbageCollection.md

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Redundant Check

There's no garbage collection in Solidity. Thus, we will have to throw away or delete the unused data on our own.

Preview

    Running 2 tests for test/GarbageCollection.t.sol:GarbageCollectionTest
    [PASS] testGetNumber() (gas: 28323)
    [PASS] testGetNumberAndCollect() (gas: 18492)
    Test result: ok. 2 passed; 0 failed; finished in 521.32µs

Guidelines

Garbage Collection helps to save some amount of gas.