45 lines (28 loc) · 795 Bytes

Append item to array

Here are a few ways to concatenate array in

let original = ["👦", "🥪"]

Using array.push()
```
array.push("💻")
```
Using array.splice
```
array.splice(array.length, 0, "💻")
```
Using index []
```
array[array.length] = "💻"
```

console.log(original) // ["👦", "🥪", "💻"]

Note: These above arrays mutate the original array.

Using spread operator ...
```
let new_array = [...original, "💻"]
```

Using array.concatenate()

let new_arry =  original.concatenate("💻")

console.log(original) // ["👦", "🥪"]

console.log(new_array) // ["👦", "🥪", "💻"]

Note: Above two method don't mutate original array, but always create new array