Conditional html heading tag based on variable in knockout.js
Conditional html heading tag based on variable in knockout.js
241
26-Jun-2024
Updated on 27-Jun-2024
Ashutosh Kumar Verma
27-Jun-2024Knockout.js Conditional Heading Tags
In Knockout.js, you can conditionally reference HTML elements such as heading tags (
<h1>
,<h2>
, etc.) using data bindings based on variables. Here you can get a conditional representation of a heading tag based on a variable.Suppose you have a visual model with an observable variable that determines the heading level to display (
headingLevel
). Here is a step-by-step example,Define Your ViewModel
HTML markup
Use Knockout.js data bindings to conditionally specify the header tag based on the
headingLevel
value.ko if
) Knockout.js provides a conditional ko if binding to HTML based on the passed expression.headingLevel
)HeadingLevel
is an observable variable that you can update dynamically in your view model. When its value changes, Knockout.js automatically updates the corresponding HTML.Example-
Here is complete simple example that demonstrates how conditionally change the heading tags (
<h1>
,<h2>
,<h3>
,<h4>
, and<h5>
).Output-
Knockout.js allows you to conditionally display HTML elements such as heading tags based on visible variables. This approach uses Knockout’s data binding capabilities to keep your UI consistent with your underlying data model.
Also, Read: How to integrate Knockout.js with other JavaScript libraries or frameworks?