if and if and else javascript

JavaScript
if (condition1) {
  // code to be executed if condition1 is true
} else if (condition2) {
  // code to be executed if the condition1 is false and condition2 is true
} else {
  // code to be executed if the condition1 is false and condition2 is false
}if (expression) {
   Statement(s) to be executed if expression is true
} else {
   Statement(s) to be executed if expression is false
}
if (32 == 32) {
	console.log('32 is equil to 32!');
}if (expression 1) {
   Statement(s) to be executed if expression 1 is true
} else if (expression 2) {
   Statement(s) to be executed if expression 2 is true
} else if (expression 3) {
   Statement(s) to be executed if expression 3 is true
} else {
   Statement(s) to be executed if no expression is true
}
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?");
}
Source

Also in JavaScript: