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25 lines
756 B
Markdown
25 lines
756 B
Markdown
# Strict Mode
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Vide has a special mode called "strict mode" which is used for debugging.
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The purpose of strict mode is to help ensure stateful code is *pure*
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(deterministic and free from side effects) or if there are side-effects, that
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they are cleaned up correctly.
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Vide is set to strict by doing:
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```lua
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local vide = require(path_to_vide)
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vide.strict = true
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```
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What strict mode will do:
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1. Run derived sources twice a source updates.
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2. Run watchers twice when a source updates.
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3. Throw an error if yields occur where they are not allowed.
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4. Checks for `indexes()` and `values()` returning primitive values.
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5. Better error reporting and stack traces.
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It is recommend to develop UI with strict mode and to disable it when pushing to
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production.
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