Coffeescript 简明教程

Easily understandable − CoffeeScript is a shorthand form of JavaScript, its syntax is pretty simple compared to JavaScript. Using CoffeeScript, we can write clean, clear, and easily understandable codes.

Write less do more − For a huge code in JavaScript, we need comparatively very less number of lines of CoffeeScript.

Reliable − CoffeeScript is a safe and reliable programming language to write dynamic programs.

Readable and maintainable − CoffeeScript provides aliases for most of the operators which makes the code readable. It is also easy to maintain the programs written in CoffeeScript.

Class-based inheritance − JavaScript does not have classes. Instead of them, it provides powerful but confusing prototypes. Unlike JavaScript, we can create classes and inherit them in CoffeeScript. In addition to this, it also provides instance and static properties as well as mixins. It uses JavaScript’s native prototype to create classes.

No var keyword − There is no need to use the var keyword to create a variable in CoffeeScript, thus we can avoid the accidental or unwanted scope deceleration.

Avoids problematic symbols − There is no need to use the problematic semicolons and parenthesis in CoffeeScript. Instead of curly braces, we can use whitespaces to differentiate the block codes like functions, loops, etc.

Extensive library support − In CoffeeScript, we can use the libraries of JavaScript and vice versa. Therefore, we have access to a rich set of libraries while working with CoffeeScript.

CoffeeScript is developed by Jeremy Ashkenas. It was first committed in Git On December 13, 2009.

Originally the compiler of the CoffeeScript was written in Ruby language.

In March 2010, the CoffeeScript compiler was replaced; this time instead of Ruby, they used CoffeeScript itself.

And in the same year, CoffeeScript 1.0 was released and at the time of release, it was one of the most wanted projects of the Git hub.

Sensitive to whitespaces − CoffeeScript is very sensitive to whitespaces, so programmers need to be very careful while providing indentations. If we do not maintain proper indentation, the entire code may go wrong.