ibag
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A visual, fast, and customizable front-end scaffolding.
54 lines (45 loc) • 1.34 kB
JavaScript
;
var _interopRequireWildcard = require("@babel/runtime/helpers/interopRequireWildcard");
exports.__esModule = true;
exports.useId = useId;
var React = _interopRequireWildcard(require("react"));
// Copied from https://github.com/carbon-design-system/carbon
// License: Apache-2.0
// Copyright IBM Corp. 2016, 2018
// Entrypoint: packages/react/src/internal/useId.js
function setupGetInstanceId() {
let instanceId = 0;
return function getInstanceId() {
return ++instanceId;
};
}
const getId = setupGetInstanceId();
const useIsomorphicLayoutEffect = canUseDOM() ? React.useLayoutEffect : React.useEffect;
function canUseDOM() {
return !!(typeof window !== `undefined` && window.document && window.document.createElement);
}
let serverHandoffCompleted = false;
/**
* Generate a unique ID with an optional prefix prepended to it
* @param {string} [prefix]
* @returns {string}
*/
function useId(prefix = `id`) {
const [id, setId] = React.useState(() => {
if (serverHandoffCompleted) {
return `${prefix}-${getId()}`;
}
return null;
});
useIsomorphicLayoutEffect(() => {
if (id === null) {
setId(`${prefix}-${getId()}`);
}
}, [getId]);
React.useEffect(() => {
if (serverHandoffCompleted === false) {
serverHandoffCompleted = true;
}
}, []);
return id;
}