Salesforce JavaScript Developer Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

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How do you define a CSS style that only applies to a specific component in LWC?

By including the style in the global CSS file

By writing the CSS in the component's own style file, which is scoped to that component

Defining a CSS style that applies only to a specific component in Lightning Web Components (LWC) is effectively achieved by writing the CSS in the component's own style file. This approach is key because LWC encapsulates styles within the component, meaning that styles defined in a component's specific CSS file are scoped only to that component.

This encapsulation prevents styles from inadvertently affecting other components or the entire application, maintaining a clear separation of styles and avoiding global conflicts. The isolation provided by using a dedicated style file promotes better maintainability and predictability of component behavior. Therefore, using the component's own style file, which adheres to LWC's styling rules, ensures that any CSS rules defined there will exclusively impact that particular component, preserving the integrity of the overall design and functionality of the application.

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By importing external stylesheets in the HTML template

By applying inline styles within the HTML tags directly

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