42 lines
2.1 KiB
Markdown
42 lines
2.1 KiB
Markdown
Timestamps
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==========
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Timestamps are provided by the via the `timestamp` function.
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[`type_of()`](type-of.md) a timestamp returns `"timestamp"`.
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Built-in Functions
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------------------
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The following methods operate on timestamps.
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| Function | Parameter(s) | Description |
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| ----------------------------- | ----------------------------------------------------------- | --------------------------------------------------------------------- |
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| `elapsed` method and property | _none_ | returns the number of seconds since the timestamp |
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| `+` operator | number of seconds to add | returns a new timestamp with a specified number of seconds added |
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| `+=` operator | number of seconds to add | adds a specified number of seconds to the timestamp |
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| `-` operator | number of seconds to subtract | returns a new timestamp with a specified number of seconds subtracted |
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| `-=` operator | number of seconds to subtract | subtracts a specified number of seconds from the timestamp |
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| `-` operator | <ol><li>later timestamp</li><li>earlier timestamp</li></ol> | returns the number of seconds between the two timestamps |
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The following time-related functions are also available.
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| Function | Parameter(s) | Description |
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| -------- | -------------------------- | ----------------------------------------------------------- |
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| `sleep` | number of seconds to sleep | blocks the current thread for a specified number of seconds |
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Examples
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--------
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```rust
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let now = timestamp();
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// Do some lengthy operation...
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if now.elapsed > 30.0 {
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print("takes too long (over 30 seconds)!")
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}
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```
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