gnezim
64 lines
1.9 KiB
JavaScript
64 lines
1.9 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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var _utils = require("./utils.js");
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const diff = (lhs, rhs) => {
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if (lhs === rhs) return {}; // equal return no diff
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if (!(0, _utils.isObject)(lhs) || !(0, _utils.isObject)(rhs)) return rhs; // return updated rhs
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const l = lhs;
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const r = rhs;
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const deletedValues = Object.keys(l).reduce((acc, key) => {
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return (0, _utils.hasOwnProperty)(r, key) ? acc : { ...acc,
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[key]: undefined
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};
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}, {});
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if ((0, _utils.isDate)(l) || (0, _utils.isDate)(r)) {
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if (l.valueOf() == r.valueOf()) return {};
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return r;
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}
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if (Array.isArray(r) && Array.isArray(l)) {
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const deletedValues = l.reduce((acc, item, index) => {
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return (0, _utils.hasOwnProperty)(r, index) ? acc.concat(item) : acc.concat(undefined);
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}, []);
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return r.reduce((acc, rightItem, index) => {
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if (!(0, _utils.hasOwnProperty)(deletedValues, index)) {
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return acc.concat(rightItem);
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}
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const leftItem = l[index];
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const difference = diff(rightItem, leftItem);
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if ((0, _utils.isObject)(difference) && (0, _utils.isEmpty)(difference) && !(0, _utils.isDate)(difference)) {
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delete acc[index];
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return acc; // return no diff
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}
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return acc.slice(0, index).concat(rightItem).concat(acc.slice(index + 1)); // return updated key
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}, deletedValues);
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}
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return Object.keys(r).reduce((acc, key) => {
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if (!(0, _utils.hasOwnProperty)(l, key)) return { ...acc,
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[key]: r[key]
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}; // return added r key
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const difference = diff(l[key], r[key]);
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if ((0, _utils.isObject)(difference) && (0, _utils.isEmpty)(difference) && !(0, _utils.isDate)(difference)) return acc; // return no diff
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return { ...acc,
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[key]: difference
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}; // return updated key
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}, deletedValues);
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};
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var _default = diff;
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exports.default = _default; |