Question

Text data-bind expressions can have only a single property. How would I pluralize some text depending on the count of another property?

Answer 1

There are several ways to do this. I demonstrated 2 ways in the fiddles shown here: http://jsfiddle.net/njj2P/2/

The first option I showed is to use a ko.computed to determine if the name should be returned in singular or plural form, based on an evaluation.

  this.formattedName = ko.computed(function() {
        return this.qty() > 1 ? this.name() + "s" : this.name();
    }, this);

The second option shows how to do this without a computed property, and instead by using a conditional binding.

<span data-bind="if:qty()>1">s</span>