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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | 75x 75x 23x 75x 1414x 1414x 1414x 1035x 1414x 1200x 1200x 1200x | import * as React from 'react'; export type IdProviderProps = { children: React.ReactNode; prefix?: string; }; const defaultPrefix = 'id-'; const generateId = (prefix = defaultPrefix) => process.env.NODE_ENV === 'test' ? '' : `${prefix}${Math.random() .toString(32) .substr(2, 6)}`; const Context = React.createContext(generateId); export function IdProvider({ children, prefix = '' }: IdProviderProps) { const count = React.useRef(0); const genId = React.useMemo( () => (localPrefix: string = defaultPrefix) => `${prefix}${localPrefix}${process.env.NODE_ENV === 'test' ? '' : ++count.current}`, [prefix] ); return <Context.Provider value={genId}>{children}</Context.Provider>; } export function useUniqueId(prefix = defaultPrefix) { const genId = React.useContext(Context); const [id] = React.useState(() => genId(prefix)); return id; } |