what is better that a if else in javascript code example

Example 1: javascript if and statement

let a = 1;
let b = 2;
if(a == 1 && b ==2){
	// Code here 
}

Example 2: if statements javascript

if (pros < 10) {
  console.log("LESS THAN 10 PROS!");
}
else if (pros < 5) {
  console.log("LESS THAN 5 PROS!");
}
else {
  console.log("How many pros are there?");
}