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12 lines
368 B
Markdown
12 lines
368 B
Markdown
# Constants
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- Can be declared anywhere,
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- The convention to use all caps in a constant's name
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- Needs const keyword
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- Not always evaluated at compile time (there are rules for this but too complex to know everything)
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- Variables can only be assigned once (needs mut to assign more than once (need to be same type))
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```rust
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const SECONDS_PER_HOUR: i32 = 60 * 60;
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```
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