function() {
        var text = this.backButtonStack[this.backButtonStack.length - 2],
            useTitleForBackButtonText = this.getUseTitleForBackButtonText();

        if (!useTitleForBackButtonText) {
            if (text) {
                text = this.getDefaultBackButtonText();
            }
        }

        return text;
    }
function() {
        var text = this.backButtonStack[this.backButtonStack.length - 2],
            useTitleForBackButtonText = this.getUseTitleForBackButtonText();

        if (!useTitleForBackButtonText) {
            if (text) {
                text = this.getDefaultBackButtonText();
            }
        }

        return text;
    }
function ( ) { var text = this . backButtonStack [ this . backButtonStack . length - 2 ] , useTitleForBackButtonText = this . getUseTitleForBackButtonText ( ) ; if ( ! useTitleForBackButtonText ) { if ( text ) { text = this . getDefaultBackButtonText ( ) ; } } return text ; }
Returns the text needed for the current back button at anytime.
@private
Returns the text needed for the current back button at anytime .