In the previous post I’ve setup a “Hello World” React Native app. I’ll now add a button that toggles some text.
The button itself is changes title depending on whether a meeting has started or not. The initial state of a meeting will default to
State is a core concept in React Native: every time state changes, all components affected by state will re-render. We will toggle the state of
Code, Tests and Travis CI
The above code is 33-minutes-app@599fd1. I’ve also setup Travis-CI in 33-minutes-app@7445d1 and have written some tests with Jest in 33-minutes-app@b05d45. Tests work by taking a snapshot of the DOM and comparing the results before and after the button is pressed. In the next post I will add and remove list items.