如何在 javascript 中的 ajax 调用中获取错误的行号

Question

When I use try, catch I can get line number of error by stack message.
But When I use this for ajax call as below,

try {
 await axios.get('http://example.com')
} catch (error) {
 console.log(error)
}

I can't get the stack error. It just gives me error of ajax call.
Isn't there any method for catching the line number in this case?
Thank you for reading it.

Answer 1

Usually, error will contain enough information to identify the problem. error is an object, when you do console.log(error) , it actually calls its toString implementation.

To get the stack only, you can use.

try {
    throw new Error('Test');
} catch (error) {
    console.log(error.stack);
}

The above will only point to the JavaScript file/piece of code that fires the request to example.com , nothing more. :)

If you want to see what happened with your call (more details of why it failed), and what was the response, try console.log(JSON.stringify(error)) and use Network DevTools -https://developers.google.com/web/tools/chrome-devtools/network