deep copy javascript

1JSON.parse(JSON.stringify(object))

1var cloned = JSON.parse(JSON.stringify(objectToClone));

1let clone = Object.assign({}, objToClone);

1JSON.parse(JSON.stringify(o))

1const deepCopyFunction = (inObject) => {
2  let outObject, value, key
3
4  if (typeof inObject !== "object" || inObject === null) {
5    return inObject // Return the value if inObject is not an object
6  }
7
8  // Create an array or object to hold the values
9  outObject = Array.isArray(inObject) ? [] : {}
10
11  for (key in inObject) {
12    value = inObject[key]
13
14    // Recursively (deep) copy for nested objects, including arrays
15    outObject[key] = deepCopyFunction(value)
16  }
17
18  return outObject
19}

1function copy(arr1, arr2) {
2	for (var i =0; i< arr1.length; i++) {
3    	arr2[i] = arr1[i];
4    }
5}
6copy(arr1, arr2)