JavaScript Errors JAVASCRIPT

JavaScript Errors  

JavaScript Errors

JavaScript Errors - Throw and Try to Catch

The try statement lets you test a block of code for errors.

The catch statement lets you handle the error.

The throw statement lets you create custom errors.

The finally statement lets you execute code, after try and catch, regardless of the result.

Errors Will Happen!

When executing JavaScript code, different errors can occur.

Errors can be coding errors made by the programmer, errors due to wrong input, and other unforeseeable things.


<p id="demo"></p>

try {
  adddlert("Welcome guest!");
catch(err) {
  document.getElementById("demo").innerHTML = err.message;

avaScript try and catch

The try statement allows you to define a block of code to be tested for errors while it is being executed.

The catch statement allows you to define a block of code to be executed if an error occurs in the try block.

The JavaScript statements try and catch come in pairs:

try {
  Block of code to try
catch(err) {
  Block of code to handle errors

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