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Questions - try-catch

'Unexpected token, expected ")"' on catch block when adding Typescript to ReactJS project?

I'm converting a ReactJS project to use Typescript. When I compile the project, on the catch block in try/catch statements, ... } catch (e: any) { console.log(e); } I get the following erro...
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Buttlet

node.js

reactjs

typescript

try-catch

Votes: 0

Answers: 1

Latest Answer

You cannot put type annotation in catch block as you don't know what error will be thrown. Workaround is to use instanceof to check which error you got catch (e) { if(e instanceof RangeError) { ...
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hejkerooo

Try and except exit error after executing the except line

I am trying to exit out of the program after executing the except line. I have tried sys.exit(1) but it is not working. I am opening an .txt file and and passing it through the code. The code works pe...
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watchtower

try-catch

exit

except

Votes: 0

Answers: 0

try-with-resource without declaring variable

I want to use try-with-resource to switch context but it seem try() can't use a resource without declaring a variable which makes the code less elegant. e.g. class SwitchContext implements Closeable {...
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user3369398

java

try-catch

Votes: 0

Answers: 2

Latest Answer

Do not discard the new object’s reference The new command returns a reference to the newly instantiated object. Your code attempt would discard that reference. So none of your code to follow could acc...
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Basil Bourque

Unit Test C# Can we test catch block?

let's say i have a method that logins in; public async Task<IActionResult> Login() { try { //my codes.. } catch(Exception exp) { _sLogger.Slack(exp) r...
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coytex

c#

unit-testing

try-catch

xunit

Votes: 0

Answers: 1

Latest Answer

Use following code public async Task<IActionResult> Login() { try { if (conditions) throw new Exception($"Message"); // throw an exception } catch(Exception exp)...
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Pawan Lakhara

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