Error Handling: Try And Catch

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In order to check your code for errors you can use the “try … catch … finally” syntax. This error handling tool is divided into 3 main blocks, and it can be implemented to monitor runtime errors that can be found within a valid code.

try {
// code to analyse
} catch(error) {
// code to execute if there's an error
} finally {
// code to execute either way
// whether there is an error or not
}

The catch block can be used to alert a special message depending on the error you get. Each error object can have a few properties including: name, message, and stack.

The throw operator allows you to create your own errors.