21 lines
447 B
Markdown
21 lines
447 B
Markdown
Constants
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=========
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{{#include ../links.md}}
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Constants can be defined using the `const` keyword and are immutable.
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Constants follow the same naming rules as [variables].
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```rust
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const x = 42;
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print(x * 2); // prints 84
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x = 123; // <- syntax error: cannot assign to constant
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```
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Constants must be assigned a _value_, not an expression.
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```rust
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const x = 40 + 2; // <- syntax error: cannot assign expression to constant
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```
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