Interview Questions and Answers

The 'attr' binding is used to set or remove one or more attributes of an HTML element based on the value of the associated observable or expression.

Example:

; var viewModel = { imageUrl: 'path/to/image.jpg', imageAlt: 'Image Alt Text' };

You can use the 'event' binding to handle various events, including key events, on HTML elements.

Example:

; var viewModel = { handleKeyPress: function(data, event) { console.log('Key pressed:', event.key); } };

The 'css' binding is used to apply or remove CSS classes to an HTML element based on the truthiness of the associated observable or expression.

Example:

Content
; var viewModel = { isActive: ko.observable(true), isDisabled: ko.observable(false) };