4 examples of 'compare two json objects javascript' in JavaScript

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function compareJson(objX, objY, result) {
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    result = result || [];
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    // 基础类型
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    // 对象类型
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    for (var key in objY) {
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        if (objY[key] !== objX[key]) {
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            if (!(key in objX)) {
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                result.push({
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                    action: 'delete',
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                    key: key
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                });
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                continue;
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            }
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            compareJson(objX[key], objY[key], result.children = []);
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        }
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    }
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    for (var key in objX) {
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        if (!(key in objY)) {
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            result.push({
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                action: "add",
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                key: key
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            });
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        }
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    }
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    return result;
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}

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function compareJsonRef(beforeJsonRef, afterJsonRef) {
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    beforeJsonRef = beforeJsonRef.replace(/.*\.json:\d+:\d+/, '')
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    afterJsonRef = afterJsonRef.replace(/.*\.json:\d+:\d+/, '')
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    return (beforeJsonRef == afterJsonRef);
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}

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function compareObjectArrays(a, b) {
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    expect(a.length).toEqual(b.length);
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    for (let i = 0, l = a.length; i < l; i++) {
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        for (const prop in a[i]) {
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            if ( hasOwnProp.call(a[i], prop) ) {
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                expect(b[i][prop]).toBeDefined();
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                expect(a[i][prop]).toEqual(b[i][prop]);
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            }
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        }
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    }
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}

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function compareObjects(a, b, options) {
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  let diffMessage;
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  let hasThrown = false;
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  try {
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    diffMessage = (0, _diffLines.default)(
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      (0, _prettyFormat.default)(a, FORMAT_OPTIONS_0),
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      (0, _prettyFormat.default)(b, FORMAT_OPTIONS_0),
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      options,
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      {
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        a: (0, _prettyFormat.default)(a, FORMAT_OPTIONS),
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        b: (0, _prettyFormat.default)(b, FORMAT_OPTIONS)
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      }
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    );
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  } catch (e) {
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    hasThrown = true;
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  } // If the comparison yields no results, compare again but this time
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  // without calling `toJSON`. It's also possible that toJSON might throw.
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  if (!diffMessage || diffMessage === _constants.NO_DIFF_MESSAGE) {
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    diffMessage = (0, _diffLines.default)(
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      (0, _prettyFormat.default)(a, FALLBACK_FORMAT_OPTIONS_0),
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      (0, _prettyFormat.default)(b, FALLBACK_FORMAT_OPTIONS_0),
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      options,
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      {
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        a: (0, _prettyFormat.default)(a, FALLBACK_FORMAT_OPTIONS),
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        b: (0, _prettyFormat.default)(b, FALLBACK_FORMAT_OPTIONS)
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      }
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    );
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    if (diffMessage !== _constants.NO_DIFF_MESSAGE && !hasThrown) {
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      diffMessage = _constants.SIMILAR_MESSAGE + '\n\n' + diffMessage;
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    }
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  }
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  return diffMessage;
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} // eslint-disable-next-line no-redeclare