Try and Catch

The try/catch keywords allow us to handle errors more gracefully. Here is an example…

try {
    let animal = newAnimal;
} catch(error){
    console.log(‘error: ‘, error);
}
console.log(‘code should continue to run…’); 

What we are doing here is telling JavaScript to “try” running the code. If there is an error catch it and do something with it. In this case, we are simply outputting it to the console, but we could log it to a server, etc. The error is caught, but the code does not stop running. If you run this code, you will see the error logged to the console and you should then see the last log statement outside the try/catch.

Happy Coding!

Clay Hess

More To Explore

Acronym DOM on wood planks
Code

A Friendly Introduction to the Document Object Model (DOM) API

The Document Object Model (DOM) is the browser’s in-memory representation of your HTML, letting JavaScript select elements (querySelector), listen to events (addEventListener), update content (textContent), toggle styles (classList), and create/insert nodes (createElement, insertAdjacentElement). With it, a button can change a box’s text, toggle a highlight class, set a data attribute, or insert a new paragraph right after the box—no page reload required—illustrating the simple flow: select, listen, update.

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