@web3r/flowerkit/dist/obj/getMergedObj/index.cjs

Tree-shakable JavaScript and TypeScript utility library for frontend/browser apps: DOM, events, arrays, objects, strings, date, JSON, and network helpers (ESM/CJS, SSR-friendly).

Object.defineProperty(exports,"__esModule",{value:true});var index=require("../isObjHasOwnProp/index.cjs");
/**
 * Gets one deeply merged object from two objects
 * @template TTarget,TSource
 * @param {TTarget} [target={}] Target object (cloned internally)
 * @param {TSource} [source={}] Source object
 * @param {{ isMergeArrays?: boolean; arrayStrategy?: "concat" | "target" | "replace" | "unique"; }} [options={}] Merge options
 * @param {boolean} [options.isMergeArrays=true] Concat nested arrays or keep target arrays (deprecated; use arrayStrategy)
 * @param {"concat"|"target"|"replace"|"unique"} [options.arrayStrategy="concat"] Array merge strategy
 * @returns {TTarget & TSource} Deeply merged object
 * @example
 * // How to deeply merge two objects?
 * const targetObj = { first: [ "foo" ] };
 * const sourceObj = { first: [ "moo" ], boo: 12 };
 * getMergedObj(targetObj, sourceObj) // => { first: [ "foo", "moo" ], boo: 12 }
 */const getMergedObj=(target={},source={},options={})=>{const settings={arrayStrategy:"concat",...options};if(options?.isMergeArrays!==void 0)settings.arrayStrategy=options.isMergeArrays?"concat":"target";const isPlainObject=obj=>{if(!obj||typeof obj!=="object")return false;const proto=Object.getPrototypeOf(obj);return(proto===Object.prototype||proto===null)&&!Array.isArray(obj)};const deepClone=(val,visited=new Map)=>{if(val&&typeof val==="object"){if(visited.has(val))return visited.get(val);if(Array.isArray(val)){visited.set(val,[]);const result=val.map(item=>deepClone(item,visited));visited.set(val,result);return result}if(isPlainObject(val)){visited.set(val,{});const result=Object.fromEntries(Object.entries(val).map(([k,v])=>[k,deepClone(v,visited)]));visited.set(val,result);return result}if(val instanceof Date)return new Date(val);if(val instanceof Map){const result=new Map;visited.set(val,result);val.forEach((v,k)=>result.set(k,deepClone(v,visited)));return result}if(val instanceof Set){const result=new Set;visited.set(val,result);val.forEach(v=>result.add(deepClone(v,visited)));return result}return val}return val};const mergeArrays=(a,b)=>{switch(settings.arrayStrategy){case"target":return deepClone(a);case"replace":return deepClone(b);case"unique":{const seen=new Set;const out=[];const addToOut=item=>{const cloned=deepClone(item);const key=typeof cloned==="object"&&cloned!==null?JSON.stringify(cloned):cloned;if(!seen.has(key)){seen.add(key);out.push(cloned)}};a.forEach(addToOut);b.forEach(addToOut);return out}case"concat":default:return[...deepClone(a),...deepClone(b)]}};const merge=(t,s,visited=new Map)=>{if(t&&typeof t==="object"&&s&&typeof s==="object"){if(visited.has(t)&&visited.get(t)===s)return visited.get(t);visited.set(t,s)}if(Array.isArray(t)&&Array.isArray(s))return mergeArrays(t,s);if(!isPlainObject(t)||!isPlainObject(s))return deepClone(s);const out=deepClone(t);for(const k in s)if(index.isObjHasOwnProp(s,k)){const tv=out[k];const sv=s[k];if(Array.isArray(tv)&&Array.isArray(sv))out[k]=mergeArrays(tv,sv);else if(isPlainObject(tv)&&isPlainObject(sv))out[k]=merge(tv,sv,visited);else out[k]=deepClone(sv)}const sourceSymbols=Object.getOwnPropertySymbols(s);for(const sym of sourceSymbols){const tv=out[sym];const sv=s[sym];if(Array.isArray(tv)&&Array.isArray(sv))out[sym]=mergeArrays(tv,sv);else if(isPlainObject(tv)&&isPlainObject(sv))out[sym]=merge(tv,sv,visited);else out[sym]=deepClone(sv)}return out};return merge(target,source)};exports.getMergedObj=getMergedObj;
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