try catch in javascript

In JavaScript, try-catch is used for exception handling. The try block contains the code that might raise an exception and the catch block contains the code to handle the exception.

Here's an example:

index.tsx
try {
  // code block that might raise an exception
  var x = y / 0;  // division by zero will raise an exception
} catch (e) {
  // code block to handle the exception
  console.log("Error: " + e.message);  // prints the error message
}
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In the above code, the try block contains the code to divide y by 0, which will raise an exception. The catch block will catch the exception and print an error message.

It's important to note that the catch block will only execute if an exception is raised in the try block. If no exception is raised, the catch block will be skipped.