Javascript Unique Concepts

Hello Friends, this is the first post of my first blog. Here I am going to tell you few Javascript basic concepts.

1) Remove duplicates from an Array

e.g

const arr = [ 1, 3, 4, 3, 5, 1 ]

To remove duplicates from array

arr = [ ...new Set(arr) ]
// [ 1, 3, 4, 5 ]

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2) Clone Object

Method 1:

const newObj = JSON.parse(JSON.stringify(obj))

Method 2:

const newObj = Object.assign( {}, obj )

Method 3:

const newObj = { ...obj }

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3) Merge two arrays and create new array

const arr3 = [ ...arr1, ...arr2 ]

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Thanks you for reading it out.