Spaces instead of tabs.

Best new years present ever!
Thanks @dfox
Happy new year! =)

It's not a bug. It's a feature!! 😂

WebEx.

Sometimes, you'll be tempted to copy-paste some piece of code from somewhere (stack overflow, w3schools, etc). But instead, read the code there and re-type it. Will help you to understand it better.

The best part is knowing that the code you are writing today will some day help thousands and millions of people to find old friends, plan trips, meet that special someone, buy stuff online or even experience what it would be like to live in another world.