UNPKG

@darwish/hooks-core

Version:

18 lines (17 loc) 688 B
"use strict"; var __importDefault = (this && this.__importDefault) || function (mod) { return (mod && mod.__esModule) ? mod : { "default": mod }; }; Object.defineProperty(exports, "__esModule", { value: true }); var react_1 = require("react"); var useUpdateEffect_1 = __importDefault(require("./useUpdateEffect")); function usePrevious(state) { var _a = (0, react_1.useState)(undefined), previous = _a[0], setPrevious = _a[1]; var _b = (0, react_1.useState)(state), change = _b[0], setChange = _b[1]; (0, useUpdateEffect_1.default)(function () { setPrevious(change); setChange(state); }, [state]); return previous; } exports.default = usePrevious;