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javascript on uncaught exception

Beautiful Beaver answered on November 10, 2021 Popularity 6/10 Helpfulness 4/10

answer javascript on uncaught exception

related uncaught exception javascript

javascript on uncaught exception

Comment

// NODE JS
process.on('uncaughtException', function (error) {
    // Handle the error
});
        

// Browser
window.onunhandledrejection = event => {
  console.warn(`UNHANDLED PROMISE REJECTION: ${event.reason}`);
};

window.onerror = function(message, source, lineNumber, colno, error) {
  console.warn(`UNHANDLED ERROR: ${error.stack}`);
};

// OR

window.addEventListener('error', function(event) { ... })

Popularity 6/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: javascript uncaught-exception

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Contributed on Nov 10 2021

Beautiful Beaver

0 Answers Avg Quality 2/10

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uncaught exception javascript

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This error occurs when an exception
(an unexpected event that disrupts the normal flow of execution) is thrown but 
not caught by any catch block in the code. For example:

function divide(a,b) {
if (b === 0) {
throw new Error("Cannot divide by zero");
}
return a / b;
}
console.log(divide(10,0));

The code above will throw an uncaught exception because there is no catch 
block to handle the Error object thrown by divide(). To fix this error,
we need to add a catch block after the try block that calls divide():
    
function divide(a,b) {
  if (b === 0) {
    throw new Error("Cannot divide by zero");
  }
  return a / b;
}
try {
  console.log(divide(10, 0)); // This will trigger an error
} catch (error) {
  console.error(error.message); // "Cannot divide by zero"
}

try {
  console.log(divide(10, 2)); // This will not trigger an error
} catch (error) {
  console.error(error.message); // This will not execute
}

To avoid this error, make sure to use `try…catch` blocks wherever appropriate
and handle different types of exceptions accordingly.

Popularity 3/10 Helpfulness 7/10 Language javascript

Source: Grepper

Tags: javascript uncaught-exception

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Contributed on Mar 26 2023

Mehedi Islam Ripon

0 Answers Avg Quality 2/10

javascript on uncaught exception

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