How do you throw an error in JavaScript?

In JavaScript, throwing an error is a way to signal that something unexpected or wrong has happened in the code.

This can be helpful in debugging and preventing further execution of the program when an error occurs.

throw statement:

The most common way to throw an error in JavaScript is by using the throw statement. This statement allows us to throw an instance of an Error object or a custom error object that we create.

For example:

function divide(a, b) {
  if (b === 0) {
    throw new Error("Cannot divide by zero");
  }
  return a / b;
}

console.log(divide(10, 0)); // throws an error

In the example above, we define a function called divide that takes two arguments a and b. We use an if statement to check if b is equal to 0. If it is, we throw a new instance of the Error object with the message "Cannot divide by zero". When we call the divide function with arguments 10 and 0, it throws an error, and the program execution stops.

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