main
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Last change
on this file since d565449 was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
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Update repo after prototype presentation
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Property mode
set to
100644
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File size:
691 bytes
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| [d565449] | 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | var react_1 = require("react");
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| 4 | var useFirstMountState_1 = require("./useFirstMountState");
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| 5 | var strictEquals = function (prev, next) { return prev === next; };
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| 6 | function usePreviousDistinct(value, compare) {
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| 7 | if (compare === void 0) { compare = strictEquals; }
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| 8 | var prevRef = react_1.useRef();
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| 9 | var curRef = react_1.useRef(value);
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| 10 | var isFirstMount = useFirstMountState_1.useFirstMountState();
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| 11 | if (!isFirstMount && !compare(curRef.current, value)) {
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| 12 | prevRef.current = curRef.current;
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| 13 | curRef.current = value;
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| 14 | }
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| 15 | return prevRef.current;
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| 16 | }
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| 17 | exports.default = usePreviousDistinct;
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