import { Controller } from "@hotwired/stimulus"
export default class extends Controller {
static targets = [ "query", "errorMessage", "results" ]
// …
}In the Stimulus Controller (Javascript), we use camelCase format.
- To check if the
errorMessagetarget exists, we should usethis.hasErrorMessageTarget(capitalize the first letter oferrorMessage) - And if we want to get the
errorMessagetarget, we should usethis.errorMessageTarget. (add suffixTarget)
To set controller target in the HTML, we should generate the kebab-case format from the target
It feels not good to switch between different naming convention, that is why I wrote this package to get my life easier
Assume we have controller:
import { Controller } from "@hotwired/stimulus"
import { useMagic } from "stimulus-magic";
export default class extends Controller {
static targets = [ "modalContent"]
static values = [ "url"]
connect() {
useMagic(this, {verbose: true});
}
}The setup is very simple. Just import useMagic and call it in the connect method.
Then a magic object is added to the Stimulus controller, you can use it to manipulate the target, value and css class.
// target singular
this.magic.target.modalContent;
// target plural
this.magic.targets.modalContent;
// target existential
this.magic.hasTarget.modalContent;
// value existential
this.magic.hasValue.url;
// value getter
this.magic.value.url;
// value setter
this.magic.value.url = 'https://stimulus.hotwired.dev/';You can even useMagic(this, {prop: 'x'}); to change the property name of the magic object.
Then access it via x property
console.log(this.x.target.modalContent);This package also print helper logs on the console of the browser.
You can turn it on by useMagic(this, {verbose: true})
It will iterate all the targets, values, css classes, and print the kebab-case format of the target, value, css class.
So we can copy the kebab-case format of the target, value, css class to the HTML directly.
It will also print valueChanged method name if we want to monitor the value change in Stimulus controller.
modal target: data-modal-container
modal target: data-modal-modal-content
modal value: data-modal-backdrop-color
modal value changed: backdropColorValueChanged
modal value: data-modal-restore-scroll
modal value changed: restoreScrollValueChanged
modal value: data-modal-url
modal value changed: urlValueChanged
I prefer to turn it on during development and copy if I need, which is very straightforward.
$ npm install stimulus-magic<!doctype html>
<html>
<head>
<meta charset="utf-8">
<script type="module">
import { Application, Controller } from "https://unpkg.com/@hotwired/stimulus/dist/stimulus.js"
import { useMagic } from "https://unpkg.com/stimulus-magic/dist/index.js";
window.Stimulus = Application.start()
Stimulus.register("hello", class extends Controller {
static targets = [ "name" ]
connect() {
useMagic(this, {verbose: true});
}
})
</script>
</head>
<body>
</body>
</html>This package is composable, which means you can use it with any Stimulus controller without causing any side effects.
import { Controller } from "@hotwired/stimulus"
import { useMagic } from "stimulus-magic";
export default class extends Controller {
connect() {
useMagic(this);
}
}// defaupt setup, use magic as the property name
useMagic(this);
// custome magic
useMagic(this, {prop: 'x'});
// print helper log on the console of the browser
useMagic(this, {verbose: true});Or you can extend the base class
import { Controller } from "@hotwired/stimulus"
import { MagicController } from "stimulus-magic";
export default class extends MagicController {
static magicOptions = {verbose: false};
}