Hello i am new to react native and im trying to create a realtime chat application using pusher-js so i installed the package npm install pusher-js @react-native-community/netinfo and put the following code in my useEffect and im getting this in the console Link of the image Im using react-native run-android …
Tag: error-handling
Why do I lose stack trace when using async-await in Node.js?
When I run the following program I get the following output which prints the stack through the various invoked functions However when the error is thrown after the await call in the following program This is the output I’d like to understand why the stack trace is lost in the second case but not in the …
Node.js – Handle body-parser invalid JSON error
I’m using the body-parser package like this: When a valid input like { “foo”: “bar” } is received everything works fine and I can access the parsed object with req.body. However, when invalid (non-JSON) data is sent: I get this error: How can I handle this properly to prevent the…
Axios. How to get error response even when api return 404 error, in try catch finally
for e.g. in finally, apiRes will return null. Even when the api get a 404 response, there is still useful information in the response that I would like to use. How can I use the error response in finally when axios throws error. https://jsfiddle.net/jacobgoh101/fdvnsg6u/1/ Answer According to the documentatio…
Why couldn’t popular JavaScript runtimes handle synchronous-looking asynchronous script?
As cowboy says down in the comments here, we all want to “write [non-blocking JavaScript] asynchronous code in a style similar to this: ” So people have come up solutions to this problem like callback libraries (eg async) promises event patterns streamline domains and generators. But none of these…
How to chain exceptions in javascript (ie add cause like in java)
Is there a standard / best practice way to add a cause of an exception in javascript. In java you might do this: When the resulting exception is printed, it’ll give you a nice trace that includes causes. Is there any good way to do this in javascript or do I have to roll my own? Answer In prod, we
Check if localStorage is available
I know there has been many questions about checking for localStorage but what if someone manually shuts it off in their browser? Here’s the code I’m using to check: Simple function and it works. But if I go into my Chrome settings and choose the option “Don’t Save Data” (I don…
Populate countries and cities dropdownlist with javascript in asp.net
I have a register form in a fancybox as an inline content and can access to it in all the site as the link is in the master page. On the register form I have two dropdownlists one for country and the other for city. When the user changes the country the dropdownlist of cities refresh as the country selected
Is there a way to add try-catch to every function in Javascript?
For error reporting, I would like to insert a try-catch wrapper around the code of every function I have. So basically I want to replace …with… Is there a way to apply this generic try-catch thing to all functions without manually editing all of them? For example by modifying the prototype of the …