Created
March 18, 2020 04:52
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Extend Object Fully
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const uniqueElements = arr => [...new Set(arr)]; | |
const getType = v => | |
v === undefined | |
? "undefined" | |
: v === null | |
? "null" | |
: v.constructor.name.toLowerCase(); | |
const extendObject = (obj, obj2) => { | |
for (let key in obj) { | |
let item = obj[key]; | |
let typeIs = getType(item); | |
let typeIs2 = getType(obj2[key]); | |
if (typeIs !== "object") { | |
if (typeIs === "array" && typeIs2 === "array") { | |
obj[key] = uniqueElements([...obj[key], ...obj2[key]]); | |
} else if (typeIs2 !== "array") { | |
obj[key] = obj2[key]; | |
} else { | |
obj[key] = { ...obj[key], ...obj2[key] }; | |
} | |
} else if (typeIs2 === "object" && typeIs === "object") { | |
extendObject(obj[key], obj2[key]); | |
} | |
} | |
for (let key in obj2) { | |
let item = obj2[key]; | |
let typeIs = getType(item); | |
let typeIs2 = getType(obj[key]); | |
if (typeIs !== "object") { | |
if (typeIs === "array" && typeIs2 === "undefined") { | |
obj[key] = item; | |
} else if (typeIs2 === "undefined") { | |
obj[key] = obj2[key]; | |
} | |
} else if (typeIs2 === "object" && typeIs === "object") { | |
extendObject(obj[key], obj2[key]); | |
} | |
} | |
}; | |
module.exports = extendObject; |
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