Read e-book online Dart: Up and Running: A New, Tool-Friendly Language for PDF

By Seth Ladd, Kathy Walrath

Wake up to hurry on Dart, the internet improvement language that not just fits the dynamic nature of JavaScript, yet addresses its difficulties to boot. This useful booklet will get you in control at the language, libraries, and instruments for constructing dependent, quick, and maintainable net apps that run in such a lot browsers.

Google designed the Dart platform to scale from basic scripts to advanced apps, operating on either the customer and the server. With this e-book, you’ll find out how Dart might actually help architect and boost HTML5 apps for the fashionable Web.

* construct net apps with the class-based, object-oriented Dart language, and assemble your code to JavaScript
* tips on how to use Dart positive aspects, from variables to operators to sessions and libraries
* Create, release, and debug net and command-line apps with the Dart Editor
* Get a journey of Dart libraries, together with dart:core, dart:html, dart:isolate, dart:io, and dart:json
* get to grips with instruments akin to Dartium, the Chromium-based browser that incorporates the Dart digital machine
* Get a walkthrough of Dart Chat, a client-server app within which either the buyer and the server are applied in Dart

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Read or Download Dart: Up and Running: A New, Tool-Friendly Language for Structured Web Apps PDF

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Extra resources for Dart: Up and Running: A New, Tool-Friendly Language for Structured Web Apps

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In that case we want to just let them perform the task without constantly interrupting them with dialogs that block their path. The solution The solution is to let them do the action they requested, in this case delete a year’s worth of accounting data, without any warning or dialog. The reason is that the “Oh, ****” moment, where they realize what they’ve done, doesn’t set in until after confirming the action. That extra dialog doesn’t even register for the user. They often won’t realize the mistake until after it is done.

The problem with this is, though you may explain some concepts of your software, this is an interface they will never see again. The most common example is having a button on your blank slate screen to create a new object. This would be fine, except that is where you are training them to click. As soon as the first object is created, the blank slate disappears, and the method they learned to create with is gone as well. 42 In Basecamp Classic, the blank-slate screens have a button to Add Time (or whatever the action for that page is), but it disappears once Isn’t the blank-slate just a help screen?

This was fixed in the latest version of Well, yes and no. It does help the user understand the software, which Basecamp, which actually uses an arrow to point to a constant button is really important, but unlike most help, it is low friction and only there from the blank-slate message. on the first run, when the user needs it most. After they know how to interact with that element, it won’t appear again. Basically, it is an easy way to show help only when it is needed. Teach your users one way to use the application, and be consistent.

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Dart: Up and Running: A New, Tool-Friendly Language for Structured Web Apps by Seth Ladd, Kathy Walrath

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