o'reilly media apr 2010 (4 Ergebnisse)

Taschenbuch. Zustand: Neu. Neuware.

Taschenbuch. Zustand: Neu. Neuware - If you're like most developers, you rely heavily on JavaScript to build interactive and quick-responding web applications. The problem is that all of those lines of JavaScript code can slow down your apps. This book reveals techniques and strategies to help you eliminate performance bottlenecks during development. You'll learn how to improve execution time, downloading, interaction with the DOM, page life cycle, and more.Yahoo! frontend engineer Nicholas C. Zakas and five other JavaScript experts - Ross Harmes, Julien Lecomte, Steven Levithan, Stoyan Stefanov, and Matt Sweeney - demonstrate optimal ways to load code onto a page, and offer programming tips to help your JavaScript run as efficiently and quickly as possible. You'll learn the best practices to build and deploy your files to a production environment, and tools that can help you find problems once your site goes live. Identify problem code and use faster alternatives to accomplish the same task Improve scripts by learning how JavaScript stores and accesses data Implement JavaScript code so that it doesn't slow down interaction with the DOM Use optimization techniques to improve runtime performance Learn ways to ensure the UI is responsive at all times Achieve faster client-server communication Use a build system to minify files, and HTTP compression to deliver them to the browser.

Taschenbuch. Zustand: Neu. Neuware - Do you use Excel for simple lists, but get confused and frustrated when it comes to actually doing something useful with all that data Stop tearing your hair out: Head First Excel helps you painlessly move from spreadsheet dabbler to savvy user.Whether you're completely new to Excel or an experienced user looking to make the program work better for you, this book will help you incorporate Excel into every aspect of your workflow, from a scratch pad for data-based brainstorming to exploratory analysis with PivotTables, optimizing outcomes with Goal Seek, and presenting your conclusions with sophisticated data visualizations.Organize and clearly present information in a spreadsheetMake calculations across a number of worksheetsChange your point of view with sorting, zooming, and filteringManipulate numerical data to extract and use just what you needLeverage Excel as a grid-based layout programWrite formulas for optimal functionalityNest formulas for more complex operationsCreate sophisticated data visualizations with charts and graphsUse Goal Seek to optimize possible outcomes based on different assumptionsCreate summaries from large data sets for exploratory data analysis with PivotTablesWe think your time is too valuable to waste struggling with new concepts. Using the latest research in cognitive science and learning theory to craft a multi-sensory learning experience, Head First Excel uses a visually rich format designed for the way your brain works, rather than a text-heavy approach that will put you to sleep.

Taschenbuch. Zustand: Neu. Neuware.