1. Michael Robertson
Yuta Takayama
Google Closure Tools

2. * Google Closure Tools are open source versions of tools used in many of Google's sites and web applications.
* These tools include:
* JavaScript optimizer (Closure Compiler)
* Comprehensive JavaScript library (Closure Library)
* Templating system for Java and JavaScript (Closure Templates)
* JavaScript style checker/fixer (Closure Linter)
* Enhanced stylesheet language (Closure Stylesheets)
* Can each be used individually or altogether

3. Closure Compiler
* Compiles JavaScript into compact and high-performance code
* Checks syntax, variable references, and types plus warns against common problems
* Removes dead code and rewrites and minimizes the rest
* Reduces the size of the JavaScript files by making them more efficient leading to faster loads and less bandwidth needs

4. Closure Compiler
* Works only on files that contain only JavaScript (not embedded in HTML)
* Can use closure compiler with other JavaScript minifiers
* Available for all platforms that run Java (compiler is written in Java)

5. Closure Library * Cross-browser and server-agnostic JavaScript library
* Large number of reusable UI widgets and controls
* Base JavaScript library for many Google products such as:
* Gmail
* Maps
* Docs
* Google+
* and more...

6. Closure Templates
* Client- and server-side templating system to build reusable HTML and UI elements
* Simple syntax and customizable
* Small components that can be composed to form the UI
* Implemented for both Java and JavaScript
* Works well in any web application environment to be used with any other libraries, frameworks, or other tools
* Used in Gmail and Google Docs

7. Closure Templates
* Secure - Closure Templates are contextually auto-escaped to reduce the risk of XSS
* XSS - “Cross-site scripting”
* Type of insecurity vulnerability that enables attackers to inject client-side script into Web pages viewed by other users

8. Closure Linter
* Utility that checks JavaScript files for style issues such as operator placement, missing semicolons, spacing, the presence of JsDoc annotations, and more
* Used on Gmail, Google Docs, and other Google products
* Enforces the guidelines set in the Google JavaScript Style Guide
* Can automatically fix common errors

9. Closure Linter

10. Closure Stylesheets
* Supports a number Google extensions to the standard CSS language
→ Can define and use variables, functions, conditionals, and mixins in your stylesheet
* Stylesheets are more readable and maintainable
* An included tool can compile the stylesheet down into standard CSS and supports minification, linting, directionality (right-to-left flipping), and class renaming

11. https://developers.google.com/closure/
For More Information