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@75lb/deep-merge

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@75lb/deep-merge

Deep-merge the values of one object structure into another

  • 1.1.2
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increased by29.05%
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What is @75lb/deep-merge?

@75lb/deep-merge is an npm package designed to deeply merge multiple objects into one. It handles nested objects and arrays, providing a robust solution for combining complex data structures.

What are @75lb/deep-merge's main functionalities?

Basic Deep Merge

This feature allows you to merge two objects deeply, combining their properties. Nested objects are merged recursively.

const deepMerge = require('@75lb/deep-merge');
const obj1 = { a: 1, b: { c: 2 } };
const obj2 = { b: { d: 3 } };
const result = deepMerge(obj1, obj2);
console.log(result); // { a: 1, b: { c: 2, d: 3 } }

Merging Arrays

This feature demonstrates how arrays within objects are merged. The arrays are concatenated.

const deepMerge = require('@75lb/deep-merge');
const obj1 = { a: [1, 2, 3] };
const obj2 = { a: [4, 5] };
const result = deepMerge(obj1, obj2);
console.log(result); // { a: [1, 2, 3, 4, 5] }

Custom Merge Function

This feature allows you to provide a custom merge function to control how specific types of values are merged.

const deepMerge = require('@75lb/deep-merge');
const customMerge = (target, source) => Array.isArray(target) ? target.concat(source) : undefined;
const obj1 = { a: [1, 2], b: { c: 3 } };
const obj2 = { a: [3, 4], b: { d: 4 } };
const result = deepMerge(obj1, obj2, customMerge);
console.log(result); // { a: [1, 2, 3, 4], b: { c: 3, d: 4 } }

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Package last updated on 31 Jul 2024

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