refs .map(r => this.refs[r]) .filter(r => r) .map(r => r.fadeOutRight(400)) .concat([backButton.fadeOutLeft(400)])
refs .map(r => this.refs[r]) .filter(r => r) .map(r => r.fadeOutLeft(400))
refs .map(r => this.refs[r]) .filter(r => r) .map(r => r.fadeOutRight(400)) .concat([backButton.fadeOutLeft(400)])
refs .map(r => this.refs[r]) .filter(r => r) .map(r => r.fadeOutLeft(400))