Atom Command Registration

snippet

	activate: function(state) {
		this.subscriptions = new CompositeDisposable();

		this.subscriptions.add(atom.commands.add('.platform-darwin .tree-view', {
			'open-a-terminal:openroot': (function(_this) {
				return function() {
					return _this.openroot();
				};
			})(this)
		}));

		this.subscriptions.add(atom.commands.add('.platform-darwin .tree-view', {
			'open-a-terminal:openhere': (function(_this) {
				return function() {
					return _this.openhere();
				};
			})(this)
		}));
	},

From Michael Bolin:

() => this.openroot()` is sufficient in ES6 when the body of the function is a single expression

This is what worked:

    activate: function(state) {
        var self = this;

        this.subscriptions = new CompositeDisposable();

        this.subscriptions.add(
            atom.commands.add(
                '.tree-view',
                {
                    'open-a-terminal:openroot': function() { return self.openroot();},
                    'open-a-terminal:openhere': function() { return self.openhere();}
                }
            )
        );
    },