lib/collection/variable.js
function () {
        var value = this.valueOf();

        // returns empty string if the value is
        // null or undefined or does not implement a toString
        return (!_.isNil(value) && _.isFunction(value.toString)) ? value.toString() : E;
    }
function () {
        var value = this.valueOf();

        // returns empty string if the value is
        // null or undefined or does not implement a toString
        return (!_.isNil(value) && _.isFunction(value.toString)) ? value.toString() : E;
    }
function ( ) { var value = this . valueOf ( ) ; // returns empty string if the value is // null or undefined or does not implement a toString return ( ! _ . isNil ( value ) && _ . isFunction ( value . toString ) ) ? value . toString ( ) : E ; }
Returns the stringified value of the variable.

@returns {String}
Returns the stringified value of the variable .