useScript
Load and manage external JavaScript scripts with useScript.
Install:
npm i @uidotdev/usehooks
Description:
The useScript hook is useful for dynamically loading external JavaScript scripts into a React component. It manages the loading and status of the script, allowing you to conditionally render components or perform actions based on whether the script has been successfully loaded or encountered an error. The hook keeps track of the script’s status and provides this status as a return value. Additionally, it offers options to remove the script when the component is unmounted, ensuring proper cleanup.
Parameters
| Name | Type | Description |
|---|---|---|
| src | string | This is the URL source of the script to be loaded. |
| options | object | This is an optional configuration object provided when calling useScript. It currently accepts two optional properties: removeOnUnmount which when set to true, will remove the script tag from the document body on component unmount, and customAttributes which is an object of custom string attributes that will be added to the script tag, this can be useful for specifying things like license keys in data-x attributes. |
Return Values
| Name | Type | Description |
|---|---|---|
| status | string | This represents the status of the script load, loading, ready, error, or unknown. An unknown script is one that previously exists in the document, but was not added via useScript. |
Demo:
Example:
import * as React from "react";
import { useScript } from "@uidotdev/usehooks";
import ScriptMeta from './ScriptMeta'
export default function App() {
const status = useScript(
`https://cdnjs.cloudflare.com/ajax/libs/mootools/1.6.0/mootools-core.js`,
{
removeOnUnmount: false,
customAttributes: {
"data-uid": "useScript",
},
}
);
React.useEffect(() => {
if (typeof window.$$ !== "undefined") {
const id = document.id("moo");
id.setStyle("background-color", "var(--green)");
}
}, [status]);
const isReady = status === "ready";
return (
<section>
<h1>useScript</h1>
<p>
<span id="moo" className={isReady ? "ready" : ""} />
<label>Status: {status}</label>
</p>
{status === "ready" && (
<ScriptMeta title="MooTools" status={status} meta={window.MooTools} />
)}
</section>
);
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