Uncaught TypeError: Cannot read property 'register' of undefined
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vinod...@questglt.com
May 18, 2018, 7:03:50 AM5/18/18
to KnockoutJS
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js" type = "text/javascript"></script>
<script src = "https://ajax.aspnetcdn.com/ajax/knockout/knockout-3.1.0.js"
type = "text/javascript"></script>
</head>
<body>
<h4>First instance, without parameters</h4>
<div data-bind='component: "message-editor"'></div>
<h4>Second instance, passing parameters</h4>
<div data-bind='component: {
name: "message-editor",
params: { initialText: "Hello, world!" }
}'></div>
</script>
<script>
ko.components.register('message-editor', {
viewModel: function(params) {
this.text = ko.observable(params && params.initialText || '');
},
template: 'Message: <input data-bind="value: text" /> '
+ '(length: <span data-bind="text: text().length"></span>)'
});
ko.applyBindings();
</script>
</body>
</html>
SLG
May 21, 2018, 5:36:19 PM5/21/18
to KnockoutJS
I think you are using knockout 3.1.0
component was added on knockout 3.2.0
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