Window, Self, and Web Workers

avoid_window.js

if ( window.Blob === undefined ) {
    // attach library custom implementation
} else {
    // use native implementation
}

like_this.js

function qux() {
  var that = this;
  that.bar = false;

  document.getElementById('foo').addEventListener('click', function(){
    that.bar = true;
  
  }, false);

}

not_like_this.js

function qux() {
  var self = this;
  self.bar = false;

  document.getElementById('foo').addEventListener('click', function(){
    self.bar = true;
  
  }, false);

}

use_self.js

if ( self.Blob === undefined ) {
    // attach library custom implementation
} else {
    // use native implementation
}

use_this.js

var root = this;

use_this2.js

if ( typeof module !== 'undefined' && module.exports ) {
    module.exports = _;
    _._ = _;
} else {
    root['_'] = _;
}

use_typeof.js

if ( typeof Blob === 'undefined' ) {
    // attach library custom implementation
} else {
    // use native implementation
}

use_window.js

window.open('http://www.google.com', 'googlePopup', 'status=1, toolbar=1');