How do you conditionally render a block of HTML in Svelte?
In Svelte, you can conditionally render a block of HTML using the {#if}, {:else if}, and {:else} block syntax. These work similarly to if, else if, and else statements in JavaScript, but are written directly inside your markup.
Key Features of Conditional Blocks
{#if}is used to render a block only when a condition is true.{:else if}can be added to check additional conditions.{:else}is used to render a default block when all conditions are false.Svelte automatically updates the DOM when the condition changes.
Example: Basic Conditional Rendering
In this example, the paragraph content changes depending on whether isLoggedIn is true or false. The button toggles the state.
Example: Using {:else if}
Here, Svelte renders different content based on the value of score, similar to nested if-else statements in JavaScript.