Nodejs: If else Vs Switch

Both if-else statements and switch statements are used for conditional branching in Node.js.

In Node.js, you can use the if statement to perform conditional branching in your code. The if statement allows you to execute a block of code if a certain condition is true, and optionally execute a different block of code if the condition is false.

Here's the basic syntax of a if statement:

if (condition) {
  // code to execute if condition is true
} else {
  // code to execute if condition is false
}

The condition is a Boolean expression that evaluates to either true or false. If the condition is true, the code inside the curly braces following the if statement will be executed. If the condition is false, the code inside the curly braces following the else keyword will be executed.

Here's an example of how to use a if-else statement:

const age = 25;
if (age < 18) {
  console.log("You are not old enough to vote.");
} else if (age >= 18 && age < 21) {
  console.log("You can vote, but you cannot drink alcohol.");
} else {
  console.log("You can vote and drink alcohol.");
}

In this example, we’re checking the value of the age variable and printing a message depending on the age range. The first if statement checks if the age is less than 18, the second if…