CODEWITHSUNDEEP
javascriptnode.jsmutexrace-conditionsingle-threaded
ashishpm
ashishpm

Reputation: 491

Can javascript have race condition?

For the following code in javascript I want to know if there are concurrent api requests to increment count is there any possibility of a race condition considering the fact that javascript is single threaded.

  app.post('/increment', async (req, res) => {
    await someAsyncFunction(); // Asynchronous operation
    count++; // Increment operation
    res.send('Count incremented');
  });

From what I understand there shouldn't be any as once the execution resumes after await someAsyncFunction() count++ being synchronous should be executed in one stretch for a request before the execution resumes the increment for other requests. Let me know if I am wrong to understand this.

Upvotes: 4

Views: 80

Answers (1)

Nha Thuoc Do Minh Duong
Nha Thuoc Do Minh Duong

Reputation: 1

Yes, JavaScript can experience race conditions, especially in environments where asynchronous code execution is involved, such as with promises, callbacks, or web APIs like setTimeout, fetch, or event listeners.

Upvotes: -3

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