html-template-string

Dead simple and insanely powerful JavaScript template-string to HTML DOM Elements renderer.
Converts a HTML String in JavaScript to a HTML DOM Element.

Features

• Small, less than 1kb gziped
• Renders everything (as SVG, fragment, regular Dom, what ever you like).
• Fast
• Dead simple easy to use

Why?

When working with WebComponents you’ll find yourself creating a lot of HTML inside JavaScript. Usually you’ll use document.createElement('div') or the like. Which is a pain in the ass to write but even more painful to read!
So various brilliant people came up with a template string or jsx method to do so. Those other libraries are huge in size and complicated. @tonis2 and I believe that there is a benefit in using our tiny html helper tool. For instance most tools does not allow you to bind events to dom elements inline. Also, often they don’t allow you to create document fragments or the output might not be the same as your input.
After kelbas @tonis2 and I had different believes in how the engine should look like and be used in future so we split up and are following our own path. You’re welcome to do the same, just copy this project and make it work for you or contribute. That is the power of open source.
Have a look at the code, its in fact only one file with ~100 lines of code. It’s nothing new, it’s nothing fancy, it’s just straight up usefull.

Example (before & after)

Hey but then I won’t have colorcoding or intellisense ? No.

Not true. Since this is common practice, you’ll find a lot of plugins that support this scenario.
For Visual Studio Code, I use this one: https://marketplace.visualstudio.com/items?itemName=pushqrdx.inline-html

How to use

Include

via HTML

Add script tagg to your HTML file.

<script type="module" src="https://tjb-webcomponents.github.io/html-template-string/html.min.js"></script>

via JavaScript

import html from 'https://tjb-webcomponents.github.io/html-template-string/html.min.js'

via NPM

npm i -S html-template-string

Then in your code:

import html from 'html-template-string'

Start using the library

View live examples here!

Examples

Create an html element

To create html elements, as in jsx, the elements have to have a container element. Otherwise you’ll have to use a document fragment.

const click_event = () => {
  window.alert("Click event works!");
}

const element = html`
<div>
  <span onclick="${click_event}"><strong>Click me!</strong></span>
  <span>Element2</span>
  <span>Element3</span>
<div>`


document.body.appendChild(element);

Create a document fragment with list of elements

Usually you’ll have to provide an outer container that wraps your element.
But if you wish to create elements without outer container, you can create a document fragment
Document fragments are elements without a real container Document Fragment

const click_event = () => {
  window.alert("Click event works!");
}

const list = html`
<data-fragment>
  <span onclick="${click_event}"><strong>Click me!</strong></span>
  <span>Element2</span>
  <span>Element3</span>
  <span>Element4</span>
  <span>Element5</span>
  <span>Element6</span>
</data-fragment>`


document.body.appendChild(list);

Will just render:

<span><strong>Click me!</strong></span>
<span>Element2</span>
<span>Element3</span>
<span>Element4</span>
<span>Element5</span>
<span>Element6</span>

Creating an Array of posts with click events

const open_post = () => {
  window.alert("Open!");
}

const array = html`<div id="container">
                      ${["post1", "post2", "post3"].map(item => html`<span onclick="${open_post}">${item}</span>`)}
                   </div>`



document.body.appendChild(array);

Creating SVG-s also possible

const circle = html`<svg height="100" width="100">
                      <circle cx="50" cy="50" r="40" stroke="black" stroke-width="3" fill="red" />
                    </svg>`;


document.body.appendChild(circle);

Enjoy