KO Observable Arrays

by Joshua McKearin

HTML

<script src="http://ajax.aspnetcdn.com/ajax/knockout/knockout-2.2.1.js"></script>
<button data-bind="click: addItem">Add</button>
<button data-bind="click: removeItem">Remove</button>

<ul data-bind="template: { name: 'listTempl', foreach: list }"></ul>

<script id="listTempl" type="text/html">
    <li data-bind="text: name"></li>
</script>

CSS

li {
    list-style: none;
}

JavaScript

$(function() {
    var data = [ {name: "Bob"}, {name: "Joe"}, {name: "John"} ];
    
    var viewModel = {
        list: ko.observableArray(data),
        addItem: function() {
            this.list.push({name: "Steve"});
        },
        removeItem: function() {
            this.list.pop();   
        }
    };
    
    ko.applyBindings(viewModel);
});