#bestPractice #php #js #py
Join an array into String in (PHP, JS, PY)

Bad practice:
//python
print("a" + " " + "b)

//php
echo "a"." ".b";

Best Practice:
// js
console.log(["a", "b"].join(" "));

//python
print(" ".join(["a", "b"])

//php
echo implode(" ", ["a", "b"]);

#bestPractice #js
How to prevent Cannot read properties of undefined using ? operator

let user = { };

Noob coders:
if(user && user.name){
console.log(user.name);
}else{
console.log("No name found in user object")
}

Pro coders:
console.log(user?.name ?? "No name found in user Object")


Pro tips by Biswa