@neo4j/graphql
Version:
A GraphQL to Cypher query execution layer for Neo4j and JavaScript GraphQL implementations
53 lines • 1.76 kB
JavaScript
;
/*
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.deepMerge = deepMerge;
/** Merges the provided objects in an array, returning a single object
* nullish values are ignored, and an empty array will return an empty object
*/
function deepMerge(input) {
if (input.length === 0) {
return {};
}
return input.reduce((acc, obj) => {
if (!isObject(obj)) {
return acc;
}
return mergeObjects(acc, obj);
}, {});
}
function mergeObjects(target, source) {
const result = { ...target };
for (const key of Object.keys(source)) {
const sourceValue = source[key];
const targetValue = target[key];
if (isObject(sourceValue) && isObject(targetValue)) {
result[key] = mergeObjects(targetValue, sourceValue);
}
else if (source[key] !== undefined) {
result[key] = source[key];
}
}
return result;
}
function isObject(a) {
return typeof a === "object" && Boolean(a) && !Array.isArray(a);
}
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