knockout.js

How can I get Knockout JS to data-bind on keypress instead of lost-focus?

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This example of knockout js works so when you edit a field and press TAB, the viewmodel data and hence the text below the fields is updated. How can I change this code so that the viewmodel data is updated every keypress? <!doctype html> <html> <title>knockout js</title> <head> <script type=”text/javascript” src=”https://stackoverflow.com/questions/4386311/js/knockout-1.1.1.debug.js”></script> <script type=”text/javascript”> window.onload= function() … Read more

Difference between knockout View Models declared as object literals vs functions

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In knockout js I see View Models declared as either: var viewModel = { firstname: ko.observable(“Bob”) }; ko.applyBindings(viewModel ); or: var viewModel = function() { this.firstname= ko.observable(“Bob”); }; ko.applyBindings(new viewModel ()); What’s the difference between the two, if any? I did find this discussion on the knockoutjs google group but it didn’t really give me … Read more

How to debug template binding errors for KnockoutJS?

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I keep having trouble with debugging problems in KnockoutJS templates. Say I want to bind to a property called “items” but in the template I make a typo and bind to the (non existing) property “item“. Using the Chrome debugger only tells me: “item” is not defined. Are there tools, techniques or coding styles that … Read more

What are the key differences between Meteor, Ember.js and Backbone.js? [closed]

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