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Add strict mode

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Angelos Chalaris
2018-09-01 13:16:19 +03:00
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glossary/Strict-mode.md Normal file
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### Strict mode
JavaScript's strict mode is a JavaScript feature that allows developers to use a more restrictive variant of JavaScript and it can be enabled by adding `'use strict';` at the very top of their code.
Strict mode elimiated some silent errors, might improve performance and changes the behavior or `eval` and `arguments` among other things.