Field Array in React using formik

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Here is a very simple and rude approach – I used Formik my project some time ago and I’m pretty sure it’s not perfect but this is exactly what you need.

So some details.

  • do not render input for every item in your list, you need only render it’s value and element with delete handler
  • you need only one controlled input and it’s value is used for name field in your todos. State is cleaned when you click Add button.
  • you need to render your element only if formik.values.todos.lenght > 0
  • you need to disable Delete button when formik.values.todos.lenght === 1
  • Add button should be disabled when newValue.lenght === 0

Piece a cake, right?

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