Conditional Rendering
In addition to template syntax, the template also includes template components.
Template components are components designed specifically for templates, and can only be used within templates.
Conditional rendering allows you to dynamically insert different content within a component based on specific conditions. Here is an example demonstrating how to use conditional rendering within a component.
In this example, we create a component called test-demo. The component contains a button that increments the count property. By using the x-if, x-else-if, and x-else tags, we implement the logic for conditional rendering.
- The
x-iftag accepts avalueproperty to define a condition. If the value ofvalueistrue, the content insidex-ifwill be rendered. In this example, ifcountis an even number, red text will be displayed. - The
x-else-iftag also accepts avalueproperty to define a condition. If the previous conditions are not met and the value ofvalueistrue, the content insidex-else-ifwill be rendered. In this example, ifcountis a multiple of 3, blue text will be displayed. - The
x-elsetag does not require avalueproperty. It will render its content when none of the previous conditions are met. In this example, ifcountis neither an even number nor a multiple of 3, green text will be displayed. Thex-elsetag can also be placed immediately afterx-if.
Through this method, you can dynamically render different content based on different conditions, achieving flexible interaction and display effects.