Skip to content

javascript.md

Latest commit

 

History

History
12 lines (5 loc) · 628 Bytes

javascript.md

File metadata and controls

12 lines (5 loc) · 628 Bytes
Raw

Javascript

  • You can transpile babel in the browser (not for production) but great to test things quickly. By requiring it from unpkg and then putting your script between a <script type=“text/babel”> tag.

  • You can pass a defaultValue attr to an input field and it will only render it at the first render.

  • You can pass a second function as an argument to a fetch.then() that fires in case of error (it will get the error as an argument)

  • If you need only one value from an array you can put commas to get to that value without getting the unused variable warning: const [ , SetCount] = React.useState(0)