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merge-deeply \n[![npm version](https://badge.fury.io/js/merge-deeply.svg)](https://badge.fury.io/js/merge-deeply)\n[![CircleCI](https://circleci.com/gh/riversun/merge-deeply.svg?style=shield)](https://circleci.com/gh/riversun/merge-deeply)\n[![codecov](https://codecov.io/gh/riversun/merge-deeply/branch/master/graph/badge.svg)](https://codecov.io/gh/riversun/merge-deeply)\n[![Codacy Badge](https://api.codacy.com/project/badge/Grade/76e6355ebb27472aaddcbdcc3dcce90c)](https://app.codacy.com/manual/riversun/merge-deeply?utm_source=github.com\u0026utm_medium=referral\u0026utm_content=riversun/merge-deeply\u0026utm_campaign=Badge_Grade_Dashboard)\n\n## Allow you to Merge or Clone with prototypes\n\n- You can deep merge (deep copy) the properties of an object\n\n- An object with a prototype declaration can be cloned to include the prototype.\n\n- Objects that have prototype declarations, prototypes and properties that can be deep copied\n\n# Usage\n\n## Install\n\n### Use with NPM\n```\nnpm install merge-deeply\n```\n\n### Use on browser from CDN\n\n```\n\u003cscript src=\"https://cdn.jsdelivr.net/npm/merge-deeply@2.0.1/lib/merge-deeply.js\"\u003e\n```\n\n## Usage\n\n### Cloning an object that has a prototype declaration\n\nThe following will execute a copy of the method declared as the prototype and a deep copy of all the properties.\n\n```js\nconst mergeDeeply = require('merge-deeply');\n\nconst clonedObject=mergeDeeply({op:'clone',object1:obj1});\n\n```\n\n### Merging 2 objects that has a prototype declaration\n\nThe two objects will be merged and a new object will be created, as follows\nOf course the prototype is copied.\n\n```js\nconst mergeDeeply = require('merge-deeply');\n\nconst mergedObject=mergeDeeply({op:'merge',object1:obj1,object2:obj2});\n\n```\n\n### Copy(overwrite) properties into object\n\nThe following merges obj1 with obj2's properties\n\n```js\nconst mergeDeeply = require('merge-deeply');\n\nmergeDeeply({op:'overwrite-merge',object1:obj1,object2:obj2});\n\n```\n\n### Merging 2 \"Properties only\" Objects\n\nIf the \"concatArray\" is true, \nelements of the array are added at merge time\n\n```js\nconst mergeDeeply = require('merge-deeply');\n\nconst a = {\n    foo: 'myValue',\n    bar: {\n        barKey1: 'myValue1',\n        barKey2: 'myValue2'\n    },\n    myArray: [{arrKey1: 'arrValue1'}, {arrKey2: 'arrValue2'}]\n\n};\n\nconst b = {\n    foo: 'updatedMyValue',\n    bar: {\n        barKey1: 'updatedMyValue1',\n        barKey2: 'myValue2'\n    },\n    some: {someKey: 'someValue'},\n    myArray: [{arrKey3: 'arrValue3'}, {arrKey4: 'arrValue4'}]\n\n};\n\n\nconst result = mergeDeeply({op:'merge',object1:a,object2:b, concatArray: true});\nconsole.log('result=');\nconsole.log(result);\n\n\n```\n\nWhen you run it you will get the following result.\n\n```js\nresult=\n{ foo: 'updatedMyValue',\n  bar: { barKey1: 'updatedMyValue1', barKey2: 'myValue2' },\n  myArray: \n   [ { arrKey1: 'arrValue1' },\n     { arrKey2: 'arrValue2' },\n     { arrKey3: 'arrValue3' },\n     { arrKey4: 'arrValue4' } ],\n  some: { someKey: 'someValue' } }\n\n```\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Friversun%2Fmerge-deeply","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Friversun%2Fmerge-deeply","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Friversun%2Fmerge-deeply/lists"}