Discuss the concept of bindings in Knockout.js.
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27-Jun-2024
Updated on 27-Jun-2024
Ashutosh Kumar Verma
27-Jun-2024Knockout.js Bindings
Bindings in Knockout.js are a key concept that facilitate communication between your HTML elements (view) and your JavaScript data model (view model). Bindings allow you to declaratively link UI elements to data properties or behavior defined in your view model.
Overviews
Bindings in Knockout.js are specified by the
data-bind
attribute of HTML elements. This object tells Knockout.js what to bind and how to bind it.Example:
<span data-bind="text: firstName"></span>
binds thetext
content of the<span>
element to thefirstName
observable in your view model.Types of Bindings
There are several types of knockout.js bindings that are as follow,
Text Binding (
text
)Updates the content of an element based on the value to be checked.
Visible Binding (
Visible
) Controls the visibility of an element based on a visible value (true/false).CSS Binding (
css
) Dynamically adds or removes CSS classes based on a tangible value.Value binding (
value
) binds the value of form elements (such as <input>, <select>, <textarea>) to the observable.Event binding (
click
,submit
, etc.) Binds DOM events to methods or functions in your visual model.Bindings in Knockout.js form the backbone of its data binding capabilities, allowing developers to easily create dynamic and responsive web applications.
Also, Read: What are custom bindings in Knockout.js?