Converts number to money for knockout.js

numericText.js

ko.bindingHandlers.numericText = {
            update: function(element, valueAccessor, allBindingsAccessor) {
                var value = ko.utils.unwrapObservable(valueAccessor());
                var precision = ko.utils.unwrapObservable(allBindingsAccessor().precision) ||
                    ko.bindingHandlers.numericText.defaultPrecision;
                if (value === undefined || value === null) {
                    return;
                }
                var formattedValue = Number(value).toFixed(precision);
                ko.bindingHandlers.text.update(element,
                    function() {
                        return "$" + formattedValue;
                    });
            },
            // Default of 2 decimal places**
            defaultPrecision: 2
        };