71-Try-catch.md

Error Handling with Try catch in javascript

In JavaScript, you can use a try-catch statement to handle errors in your code.

The basic syntax for a try-catch statement is:

try {
  // Your code here
} catch (error) {
  // Handle the error here
}

Here's how it works:

1. The code inside the try block is executed.
2. If an error occurs, JavaScript immediately jumps to the catch block.
3. The error object is passed to the catch block as a parameter. You can then use this object to handle the error, log it to the console, or display a user-friendly message to the user.
4. After the catch block is finished, the program continues to execute normally.

For example, let's say you have a function that divides two numbers:

function divide(a, b) {
  return a / b;
}

If you call this function with divide(10, 0) (which would result in a division by zero error), you could use a try-catch statement to handle the error and return a user-friendly message instead:

function divide(a, b) {
  try {
    return a / b;
  } catch (error) {
    console.log("An error occurred: " + error.message);
    return "Cannot divide by zero";
  }
}

console.log(divide(10, 0)); // Outputs: "An error occurred: Division by zero" and "Cannot divide by zero"