Contents
How do you pass context to a function?
apply() methods allow you to set the context for a function. var myfunc = function(){ alert(this.name); }; var obj_a = { name: “FOO” }; var obj_b = { name: “BAR!!” }; Now you can call: myfunc.
What is function context?
Functions in JavaScript run in a specific context, and using the this variable we have access to it. All standard functions in the browser run under the Window context. Functions defined under an object or a class (another function) will use the context of the object it was created in.
How to do interactive CoffeeScript in JavaScript?
Just like –map, but include the source map directly in the compiled JavaScript files, rather than in a separate file. Launch an interactive CoffeeScript session to try short snippets. Identical to calling coffee with no arguments. Write out all compiled JavaScript files into the specified directory. Use in conjunction with –compile or –watch.
What are the major changes in CoffeeScript 2?
The biggest change in CoffeeScript 2 is that now the CoffeeScript compiler produces modern JavaScript syntax (ES6, or ES2015 and later). A CoffeeScript => becomes a JS =>, a CoffeeScript class becomes a JS class and so on. Major new features in CoffeeScript 2 include async functions and JSX.
Which is an example of literate CoffeeScript?
An example: Parses the code as Literate CoffeeScript. You only need to specify this when passing in code directly over stdio, or using some sort of extension-less file name. Compile and print a little snippet of CoffeeScript directly from the command line. For example:
How to compile JavaScript into CoffeeScript in Babel?
The coffee command takes the following options: Compile a .coffee script into a .js JavaScript file of the same name. Pipe the CoffeeScript compiler’s output through Babel before saving or running the generated JavaScript.