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Optimize deepClone function

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Dorian Niemiec 2024-08-28 07:14:13 +02:00
parent fb887e4122
commit 4b37e08bb5
1 changed files with 24 additions and 19 deletions
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43
src/utils/deepClone.js
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@ -4,41 +4,46 @@ function deepClone(obj) {
return obj;
}
const recurse = (obj, _objectsArray, _clonesArray) => {
if (!_objectsArray) _objectsArray = [];
if (!_clonesArray) _clonesArray = [];
const objectsArray = [];
const clonesArray = [];
let objectsArrayIndex = _objectsArray.indexOf(obj);
if (objectsArrayIndex != -1) {
return _clonesArray[objectsArrayIndex];
const recurse = (obj) => {
let objectsArrayIndex = -1;
for (let i = 0; i < objectsArray.length; i++) {
if (objectsArray[i] == obj) {
objectsArrayIndex = i;
break;
}
}
let clone;
if (objectsArrayIndex != -1) {
return clonesArray[objectsArrayIndex];
}
if (Array.isArray(obj)) {
clone = [];
_objectsArray.push(obj);
_clonesArray.push(clone);
const clone = [];
objectsArray.push(obj);
clonesArray.push(clone);
obj.forEach((item, index) => {
clone[index] =
typeof item !== "object" || item === null
? item
: recurse(item, _objectsArray, _clonesArray);
typeof item !== "object" || item === null ? item : recurse(item);
});
return clone;
} else {
clone = {};
_objectsArray.push(obj);
_clonesArray.push(clone);
const clone = {};
objectsArray.push(obj);
clonesArray.push(clone);
Object.keys(obj).forEach((key) => {
clone[key] =
typeof obj[key] !== "object" || obj[key] === null
? obj[key]
: recurse(obj[key], _objectsArray, _clonesArray);
: recurse(obj[key]);
});
return clone;
}
return clone;
};
return recurse(obj);
return recurse(obj, objectsArray, clonesArray);
}
module.exports = deepClone;