CoffeeScript Whitespace After a Statement Creates an Object Context

Example.coffee

###
The indentation on a line following a statement creates an implicit variable.
That variable can be reused by placing more statements on the same whitespace level.
###

createElement 'a'
  .style
    .width = 100
    .height = 100 
  .setAttribute 'href', 'http://...'
  .appendChild
    createElement 'strong'
      .textContent = 'foo'
  .appendChild
    createTextNode 'bar'
    
    

Example.js

var a = createElement('a'),
    a_style = a.style;
a_style.width = 100;
a_style.height = 100;
a.setAttribute('href', 'http://...');
var strong = createElement('strong');
strong.textContent = 'foo';
a.appendChild(strong);
a.appendChild(createTextNode('bar'));