Example of a native JavaScript implementation merge multiple arrays

1. Native JavaScript implementation

The code copy is as follows:

var array1 = ["a", "b"];

var array2 = ["c", "d"];

I want to merge and become like this:

The code copy is as follows:

<span style="font-weight:bold">var</span> <span style="font-weight:bold">array</span>= [<span style="color:rgb(221,17,68)">"a"</span>, <span style="color:rgb(221,17,68)">"b"</span>, <span style="color:rgb(221,17,68)">"c"</span>, <span style="color:rgb(221,17,68)">"d"</span>];

Available

The code copy is as follows:

arr1.concat(arr2);

2. Jquery implementation

The code copy is as follows:

$.merge(array1,array2);

console.log($.unique(array1));