Bonnie Eisenman's Learning React Native: Building Native Mobile Apps with PDF

By Bonnie Eisenman

ISBN-10: 1491929006

ISBN-13: 9781491929001

Get a pragmatic creation to React local, the JavaScript framework for writing and deploying totally featured cellular apps that appear and feel local. With this hands-on advisor, you’ll construct purposes that concentrate on iOS, Android, and different cellular structures rather than browsers. You’ll additionally observe the right way to entry platform positive aspects reminiscent of the digicam, consumer position, and native storage.

With code examples and step by step directions, writer Bonnie Eisenman indicates net builders and frontend engineers find out how to construct and magnificence interfaces, use cellular elements, and debug and set up apps. alongside the best way, you’ll construct a number of more and more subtle pattern apps with React local earlier than placing every little thing jointly on the end.

- find out how React local presents an interface to local UI components
- study how the framework makes use of local parts analogous to HTML elements
- Create and magnificence your personal React local elements and applications
- set up modules for APIs and lines no longer supported via the framework
- Get instruments for debugging your code, and for dealing with matters outdoors of JavaScript
- placed all of it including the Zebreto effective-memorization flashcard app
- installation apps to the iOS App shop and Google’s Play shop

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Extra resources for Learning React Native: Building Native Mobile Apps with JavaScript

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Bottom line: You can keep values contained by wrapping them within functions. Global namespace Speaking of variable conflicts, please do me a favor: open any web page, activate the JavaScript console, type window, and click the gray disclosure triangle to view its contents. I know it feels like you just entered the matrix, but this is actually called “the global namespace,” which might sound even cooler (see Figure 3-10). Figure 3-10. The global namespace window is the topmost object in the browser’s hierarchy of JavaScript elements, and all of these objects and values you see beneath window exist at the global level.

Log("something"); to do that. Type the following examples into the console to see how it works. Variables Variables are containers for data. A simple variable holds one value: var number = 5; JavaScript | 35 In that statement, var indicates you are declaring a new variable, the name of which is number. The equals sign is an assignment operator because it takes the value on the right (5) and assigns it to the variable on the left (number). ” As you’ve just seen, variables can store numeric values as well as strings of text, so called because they are formed by stringing together individual characters of text.

In Chrome, find them under View→Developer→Developer Tools. In Firefox, try Tools→Web Developer. In Safari, first enable the developer tools (in Safari→Preferences→Advanced). Then, in the Develop menu, choose Show Web Inspector. In any browser, you can also use the corresponding keyboard shortcut (as shown adjacent to the menu item) or right-click and choose “inspect element” or something similar. 0, Apple completely redesigned their dev tools, much to the dismay of many webdeveloping Safari fans.

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Learning React Native: Building Native Mobile Apps with JavaScript by Bonnie Eisenman

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