Question

How do I make it so that I can decrease and increase the number in the Full counter app.(using react native)

Answer 1

1. Set initial state

As we can see our state is a object with two properties clicks and show

clicks to store how many times we click on button

show to set value to true or false depending if we want see number or not

2. Write functions IncrementItem, DecreaseItem and ToggleClick

IncrementItem() we change our state clicks by adding 1.

DecreaseItem() we change our state clicks by removing 1.

ToggleClick() we flip our state show for opposite every time we click.

3.Passing methods to buttons

If we have a class component with need render method where we return who we want show in browser

create three button where we are passing onClick our methods

last thing inline if statement where we determined depending of our state show if we want show number or not

And we are done

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