example/dist/production.js
function(expr, options) {
                    var fn = options.fn;
                    options.fn = options.inverse;
                    options.inverse = fn;
                    return Mustache._helpers['if'].fn.apply(this, arguments);
                }
function(expr, options) {
                    var fn = options.fn;
                    options.fn = options.inverse;
                    options.inverse = fn;
                    return Mustache._helpers['if'].fn.apply(this, arguments);
                }
function ( expr , options ) { var fn = options . fn ; options . fn = options . inverse ; options . inverse = fn ; return Mustache . _helpers [ 'if' ] . fn . apply ( this , arguments ) ; }
Implements the `unless` built-in helper.
Implements the unless built - in helper .