Ignore void-use for promises in sonarlint

[Ranjeesh]

• Operating system: Windows
• SonarLint plugin version: v4.6.0
• Programming language you’re coding in: Javascript
• Is connected mode used:
  • Connected to SonarCloud or SonarQube (and which version): No

So I have been using void for promises in the code:
void this.router.navigate

Which the sonnar js supports from Ignore promises in S3735 `void-use` · Issue #2629 · SonarSource/SonarJS · GitHub

But still the vs code is giving warning. Need fix for this.

[Colin]

I’ve moved your post to the section on reporting false-positives.

How to Report a False-positive / False-negative

Hey SonarSource Community! False-positives happen, as do false-negatives, and we’re eager to fix them. We are thrilled when our users report problems, so we can make our products better. What is a false-positive (FP)? A false-positive is when an issue is raised unexpectedly on code that should not trigger an issue, or where the suggested action doesn’t make any sense for the code. What is a false-negative (FN)? A false-negative is when an issue should be raised on a piece of code, but isn’t…

can you please provide a complete code sample?

[Costiss (Gabriel Costa Martins Ganassin)]

I’m having the same issue on Community Build v25.7.0.110598. Sonar is unable to detect explicit void keyword on functions that return promises.
This sonar rule conflicts with ESLint rule no-floating-promises | TypeScript ESLint

void asyncFunction(); → This errors as a False-Positive, but is a good practice

This issue is related to this topic Typescript '"void" should not be used' triggers wrongly - #5

The URL for the ticket referenced in this topic is not available

[Colin]

Hey @Costiss

My feedback to you is the exact same as to OP.

Ignore void-use for promises in sonarlint

I’ve moved your post to the section on reporting false-positives. can you please provide a complete code sample?

[Costiss (Gabriel Costa Martins Ganassin)]

Hi Colin, thanks for the reply.

Here is a code example with more details

async function example() {
  const response = await fetch("https://api.example.com/data");
  const data = await response.json();
  return data;
}

async function main() {
  void example(); // ESLint no-floating-promises compliant but SonarQube error
  example(); // ESLint no-floating-promises error
}

[Colin]

Hey there.

We should have fixed this in a version of our Javascript analyzer that landed in 25.7

JS-633 Improve S3735: if no types, don't raise

In any case I’m not seeing the error raise in 25.9

I suggest updating!