I recently learned this method:
<h2 id="copying-a-javascript-object">Copying a JavaScript Object</h2>
<pre><code>const source = { a: 1, b: 2 };
const copy = Object.assign({}, source);
</code></pre><h2 id="copying-a-javascript-array">Copying a JavaScript Array</h2>
<pre><code>const arr = [0,2,3,4,5];
const arrCopy = arr.slice(0);
</code></pre>These two functions come handy when you don&#39;t want to modify the source object/array and need a copy instead.

I recently learned this method:

## Copying a JavaScript Object

```
const source = { a: 1, b: 2 };
const copy = Object.assign({}, source);
```

## Copying a JavaScript Array

```
const arr = [0,2,3,4,5];
const arrCopy = arr.slice(0); 
```

These two functions come handy when you don't want to modify the source object/array and need a copy instead.

Copying JavaScript object and arrays

Copying a JavaScript Object

Copying a JavaScript Array