andre/30-seconds-of-code
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Apply new format to snippets and template

Browse Source
This commit is contained in:
Angelos Chalaris
2020-09-15 16:28:04 +03:00
parent 040efd4380
commit 53c16dbf65
401 changed files with 969 additions and 950 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
snippets/deepClone.md
View File

@ -6,11 +6,11 @@ tags: object,recursion,intermediate
Creates a deep clone of an object.
Clones primitives, arrays and objects, excluding class instances.
Use recursion.
Check if the passed object is `null` and, if so, return `null`.
Use `Object.assign()` and an empty object (`{}`) to create a shallow clone of the original.
Use `Object.keys()` and `Array.prototype.forEach()` to determine which key-value pairs need to be deep cloned.
If the object is an `Array`, set the `clone`'s `length` to that of the original and use `Array.from(clone)` to create a clone.
- Use recursion.
- Check if the passed object is `null` and, if so, return `null`.
- Use `Object.assign()` and an empty object (`{}`) to create a shallow clone of the original.
- Use `Object.keys()` and `Array.prototype.forEach()` to determine which key-value pairs need to be deep cloned.
- If the object is an `Array`, set the `clone`'s `length` to that of the original and use `Array.from(clone)` to create a clone.
```js
const deepClone = obj => {