I am trying to write a retry logic to connect to AWS Aurora db for mysql. Aurora db can sleep if it is left idle for a specified amount of time and performs a cold restart upon receiving a request. The restart can take 30-50sec and to establish a connection, I am doing three reattempts in the code below. To
Tag: try-catch
capture error from catchError – http.post
component which is calling submitUser Here is the service file with submitUser function and here is the httpService Post and handleError methods handleError adisplays the console error, I am trying to return/capture this error in my submitUser function in service.ts How do i do that ? Any Inputs appreciated, …
try…catch not work in JavaScript (Discord.js)
I’m working on a bot to fetch a user’s avatar, I use try…catch for user mention detection, but it still throws an error. And I tried a simple try…catch, and it throws an error SyntaxError: Identifier ‘x’ has already been declared: Here’s my code: IDE Using: Virtual St…
Catch block wrapping a function that throws inside a setTimeout not executed
Experienced something strange recently, none of the catch blocks get executed: and And according to the mdn docs Execution of the current function will stop (the statements after throw won’t be executed), and control will be passed to the first catch block in the call stack. If no catch block exists amo…
How to continue running functions down the chain if an error threw?
So, I should create some functions with chains for validating, example: and function should throw an error if something isn’t comparing. I have a problem, if something throw an error, than it doesn’t continue work, I tried to add try catch, but then tests shows me that it don’t throw an erro…
Try catch on v if
I have a v-if that shows an error message in HTML if I set in data showError: true it appears. But when I call it in inside my catch: the alert works fine but if I send or do not appears the error message in HTML(v-if) how do i do that? Answer You need to set the member to true
How does one avoid or suppress code exceptions while trying to assign an object value via exactly one expression
I am really at the beginning with JavaScript and I am trying to assign a value of my object field. The value is coming from another object, but that value must be modified. It crashes if the value is null, so I need a try-catch block but I don’t know how to do it. I want to convert some values
Correct Try…Catch Syntax Using Async/Await
I like the flatness of the new Async/Await feature available in Typescript, etc. However, I’m not sure I like the fact that I have to declare the variable I’m awaiting on the outside of a try…catch block in order to use it later. Like so: Please correct me if I’m wrong, but it seems to…
How to throw an error inside of a call back, and catch it outside
Intro Inside of this jQuery(document).ready() function, inside the anonymous function, I am throwing an error which gets caught inside of the second catch block. Then I am throwing an error inside of that catch block AND trying to catch it outside in the first try catch block. Questions. Is this possible? BRO…
Javascript set const variable inside of a try block
Is it possible in ES6 to set a variable inside of a try{} using const in strict mode? This fails to lint because configPath is defined out of scope. The only way this seems to work is by doing: Basically, is there any way to use const instead of let for this case? Answer Declaring a variable as const requires