wait-on-lib

Use Iron-Router waitOn to load external javascript libraries

###Load one or more independend libraries IRLibLoader returns a handle similar to a subscriptions handle. It is ready as soon as the external script is loaded.

Router.map( function () {
  this.route('codeEditor',{
    waitOn: function(){
        return [IRLibLoader.load('https://some-external.com/javascript.js'), IRLibLoader.load("smthels.js")]
    }
  });
});

###Load dependend libraries Here we have one.js and two.js. two.js has to be loaded secondly because it depends on one.js. This is how you can do this:

Router.map(function(){
  this.route('home', {
    path: '/',
    onBeforeAction: function(){
      var one = IRLibLoader.load('/one.js', {
        success: function(){ console.log('SUCCESS CALLBACK'); },
        error: function(){ console.log('ERROR CALLBACK'); }
      });
      if(one.ready()){

        var two = IRLibLoader.load('/two.js');
        if(two.ready()){
          this.next();
        }
      }
    }
  });
});

Also notice that you can use an error and success callback in the IRLibLoader options.