16 lines
766 B
Markdown
16 lines
766 B
Markdown
---
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layout: docs
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title: FAQ
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description: Frequently asked questions and answers
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permalink: /docs/faq/
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---
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## Why are there `Array.from` and `Object.assign` calls in my code?! These functions don't exist!
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This is a known [/docs/caveats](). This is because 6to5 compiles to ES3 syntax but with ES5 and ES6 methods. I know, I know, this might not make much sense, but this is essential to emulate a complete ES6 environment so your code wont break!
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You have two options, depending on your use-case:
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- Use the wonderful [coreAliasing optional transformer](/docs/usage/transformers#core-aliasing). This is recommended if you're writing a library.
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- Use the bundled 6to5 [polyfill](/docs/usage/polyfill). This is recommended if you're writing an entire application.
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