Hello Folks 👋
What's up, this is SnowBit here. I am a young passionate and self-taught developer and have an intention to become a successful developer.
Today, I am here with a basic topic mostly for beginners and revisers.
Avoid this
const arr = ["JS", "PY", "CSS"]
const lastItem = arr[2]
Don't do this for getting the last item of an array. Let me explain, this is a small array and contains only 3 items that are easily countable but, what if there are hundred's of items in an array then this method will make you mad 🤯
Do this
const arr = ["JS", "PY", "CSS"]
const lastItem = arr[arr.length - 1]
Here, arr.length becomes dynamic, it increases as you increase items in arr no matter how many you add and that will not make you mad 😜
Thank you for reading, have a nice day! Your appreciation is my motivation 😊
- Follow me on Twitter - @codewithsnowbit
- Subscribe me on YouTube - Code With SnowBit