Once you understand how React works, you’ll build a complete custom Whinepad app that helps users rate wines and keep notes. You’ll quickly learn why some developers consider React the key to the web app development puzzle.
Set up React and write your first "Hello world" web app
Create and use custom React components alongside generic DOM components
Build a data table component that lets you edit, sort, search, and export its contents
Use the JSX syntax extension as an alternative to function calls
Set up a lean, low-level build process that helps you focus on React
Build a complete custom app that lets you store data on the client
Use ESLint, Flow, and Jest tools to check and test your code as your app evolves
The animal on the cover of React: Up & Running is an ‘i’iwi (pronounced ee-EE-vee)bird, which is also known as a scarlet Hawaiian honeycreeper. The author’s daughterchose this animal after doing school report on it. The ‘i’iwi is the third most commonnative land bird in the Hawaiian Islands, though many species in its family, Fringillidae,are endangered or extinct. This small, brilliantly colored bird is a recognizablesymbol of Hawai’i, with the largest colonies living on the islands of Hawai’i, Maui, andKaua’i.
Adult ‘i’iwis are mostly scarlet, with black wings and tails and a long, curved bill. Thebright red color easily contrasts with the surrounding green foliage, making the ‘i’iwivery easy to spot in the wild. Though its feathers were used extensively to decoratethe cloaks and helmets of Hawaiian nobility, it avoided extinction because it was consideredless sacred than its relative, the Hawaiian mamo.
The ‘i’iwi’s diet consists mostly of nectar from flowers and the '?hi?a lehua tree,though it will occasionally eat small insects. It is also an altitudinal migrator; it followsthe progress of flowers as they bloom at increasing altitudes throughout the year.This means that they are able to migrate between islands, though they are rare onO’ahu and Moloka’i due to habitat destruction, and have been extinct from L?na?isince 1929.
There are several efforts to preserve the current ‘i’iwi population; the birds are verysusceptible to fowlpox and avian influenza, and are suffering from the effects ofdeforestation and invasive plant species. Wild pigs create wallows that harbor mosquitos,so blocking off forest areas has helped to control mosquito-borne diseases,and there are projects underway that attempt to restore forests and remove nonnativeplant species, giving the flowers that ‘i’iwis prefer the chance to thrive.