112 lines
3.8 KiB
Markdown
112 lines
3.8 KiB
Markdown
[](https://htmx.org)
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*high power tools for HTML*
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[](https://htmx.org/discord)
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[](https://app.netlify.com/sites/htmx/deploys)
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[](https://bundlephobia.com/result?p=htmx.org)
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[](https://bundlephobia.com/result?p=htmx.org)
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## introduction
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htmx allows you to access [AJAX](https://htmx.org/docs#ajax), [CSS Transitions](https://htmx.org/docs#css_transitions),
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[WebSockets](https://htmx.org/docs#websockets) and [Server Sent Events](https://htmx.org/docs#sse)
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directly in HTML, using [attributes](https://htmx.org/reference#attributes), so you can build
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[modern user interfaces](https://htmx.org/examples) with the [simplicity](https://en.wikipedia.org/wiki/HATEOAS) and
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[power](https://www.ics.uci.edu/~fielding/pubs/dissertation/rest_arch_style.htm) of hypertext
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htmx is small ([~14k min.gz'd](https://unpkg.com/htmx.org/dist/)),
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[dependency-free](https://github.com/bigskysoftware/htmx/blob/master/package.json),
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[extendable](https://htmx.org/extensions) &
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IE11 compatible
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## motivation
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* Why should only `<a>` and `<form>` be able to make HTTP requests?
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* Why should only `click` & `submit` events trigger them?
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* Why should only GET & POST be available?
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* Why should you only be able to replace the *entire* screen?
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By removing these arbitrary constraints htmx completes HTML as a
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[hypertext](https://en.wikipedia.org/wiki/Hypertext)
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## quick start
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```html
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<script src="https://unpkg.com/htmx.org@1.9.12"></script>
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<!-- have a button POST a click via AJAX -->
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<button hx-post="/clicked" hx-swap="outerHTML">
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Click Me
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</button>
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```
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The [`hx-post`](https://htmx.org/attributes/hx-post) and [`hx-swap`](https://htmx.org/attributes/hx-swap) attributes tell htmx:
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> "When a user clicks on this button, issue an AJAX request to /clicked, and replace the entire button with the response"
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htmx is the successor to [intercooler.js](http://intercoolerjs.org)
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### installing as a node package
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To install using npm:
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```
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npm install htmx.org --save
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```
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Note there is an old broken package called `htmx`. This is `htmx.org`.
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## website & docs
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* <https://htmx.org>
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* <https://htmx.org/docs>
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## contributing
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Want to contribute? Check out our [contribution guidelines](CONTRIBUTING.md)
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No time? Then [become a sponsor](https://github.com/sponsors/bigskysoftware#sponsors)
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### hacking guide
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To develop htmx locally, you will need to install the development dependencies.
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__Requires Node 15.__
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Run:
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```
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npm install
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```
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Then, run a web server in the root.
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This is easiest with:
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```
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npx serve
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```
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You can then run the test suite by navigating to:
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<http://0.0.0.0:3000/test/>
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At this point you can modify `/src/htmx.js` to add features, and then add tests in the appropriate area under `/test`.
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* `/test/index.html` - the root test page from which all other tests are included
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* `/test/attributes` - attribute specific tests
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* `/test/core` - core functionality tests
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* `/test/core/regressions.js` - regression tests
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* `/test/ext` - extension tests
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* `/test/manual` - manual tests that cannot be automated
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htmx uses the [mocha](https://mochajs.org/) testing framework, the [chai](https://www.chaijs.com/) assertion framework
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and [sinon](https://sinonjs.org/releases/v9/fake-xhr-and-server/) to mock out AJAX requests. They are all OK.
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You can also run live tests and demo of the WebSockets and Server-Side Events extensions with `npm run ws-tests`
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## haiku
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*javascript fatigue:<br/>
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longing for a hypertext<br/>
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already in hand*
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