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lit-html

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lit-html

HTML templates literals in JavaScript

  • 3.2.1
  • latest
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2.7M
increased by12.37%
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13
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What is lit-html?

The lit-html npm package is a simple, modern, and efficient library for creating and managing HTML templates with JavaScript. It uses JavaScript template literals with embedded HTML markup to render dynamic content in web applications. The library is designed to be lightweight and fast, with a focus on minimizing the amount of work needed to update the DOM when the application state changes.

What are lit-html's main functionalities?

Dynamic Template Binding

lit-html allows you to bind data dynamically to your HTML templates using JavaScript expressions within template literals. The example code shows how you can insert a variable 'name' into a paragraph element.

`<p>Hello, ${name}!</p>`

Conditional Rendering

You can use JavaScript ternary operators to conditionally render parts of your template. This example demonstrates rendering a different paragraph element based on the truthiness of a 'condition' variable.

`${condition ? html`<p>True</p>` : html`<p>False</p>`}`

Repeating Templates

lit-html provides a straightforward way to render lists or repeat templates by using standard JavaScript array methods like 'map'. In this code, 'items' is an array that is being mapped to a list of 'li' elements.

`${items.map(item => html`<li>${item}</li>`)}`

Event Handling

Event handling in lit-html is done by prefixing the event name with an '@' symbol and assigning a handler function. The example shows a button element that calls the 'handleClick' function when clicked.

`<button @click=${handleClick}>Click me</button>`

Composability

lit-html templates can be composed together to build complex UIs. This example demonstrates how you can combine different template parts, like 'headerTemplate' and 'footerTemplate', to create a complete layout.

`${headerTemplate} ${footerTemplate}`

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Package last updated on 07 Oct 2024

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