Why doesn't the script for TODO work?

Question

JavaScript

https://codepen.io/danilst/pen/gdOjLm
When a new todo is added, the entire list of ever added todos is displayed again.
This was not before I decided to make a list on the components.

Answer 1

Because you change the props, and in the loop in the parent, each time you pass this prop again. Make an onDelete event for the child, and catch it from the parent.
https://codepen.io/anon/pen/bxGmMB