1,127
questions
0
votes
2
answers
48
views
How to run a function after a specifik component is rendered in React? [duplicate]
I'm working on my navbar. I have a header with a component within called HeaderSearch. What I want is to run a function each time the user clicks outside of the HeaderSearch. And then add an animation ...
- 25
0
votes
0
answers
23
views
How to run a function after a specifik component is rendered in React? [duplicate]
I'm working on my navbar. I have a header with a component within called HeaderSearch. What I want is to run a function each time the user clicks outside of the HeaderSearch. And then add an animation ...
- 25
1
vote
1
answer
53
views
Python Asyncio source code analysis: Why does `_get_running_loop` in Python execute the C implementation instead of the Python one?
I've been exploring the async source code and noticed that the function _get_running_loop() is defined both in Python and has a note stating it's implemented in C (in _asynciomodule.c).
# python3.11/...
- 751
0
votes
0
answers
76
views
How to fork Qt6 program
I have already exhaustively googled this topic, and the answer is "don't do it".
However I am kind of stuck between a rock and a hard place, so I need to thoroughly explore this topic before ...
- 9,528
0
votes
1
answer
32
views
Event loop is closed- pytest- FastAPI
In my fastapi application i have written test cases using pytest.
My tests folder includes
conftest.py
import pytest
from fastapi.testclient import TestClient
from main import app
@pytest.fixture(...
- 77
0
votes
0
answers
25
views
why setTimeout executed first then the setImmediate in nodeJS-v20.11.0 [duplicate]
console.log("---------Event Order---------");
const fs = require('fs');
const path = require('path');
const currentDir=__dirname
const fileName='example.txt'
const filePath=path.join(...
- 19
0
votes
1
answer
44
views
Priority of react's useEffect in Event-Loop
Background
react 18.3
chrome browser v127
Question
import { useEffect, useState } from 'react'
function App() {
const [state, setState] = useState(0);
console.log(1);
queueMicrotask(() => ...
- 3,885
0
votes
0
answers
42
views
Event loop of node.js produces unpredictable results
While exploring the node.js event loop, I realized that poll events appear in some random order, rather than following the order described in the event loop.
The logic of the code is trivial: we ...
- 559
-6
votes
1
answer
66
views
Node/ExpressJs fail to handle 1000 requests at the same time
I have 2 expressjs servers:
Server A:
const express = require('express')
const axios = require('axios');
const app = express()
const port = 3000
function deepSleep (duration) {
const start = new ...
- 23
0
votes
0
answers
40
views
useEffect and promise priority in inital and subsequent renders
I have below code and help me to find the output with accurate explanation.
'infiniteLoopProtection:false'
import * as React from "react";
import { useState, useEffect } from "react&...
0
votes
0
answers
36
views
Why does a blocked Electron main process block the renderer process, even without IPC?
Based on the Electron process model, I expected that a blocked main process would not cause unresponsiveness in a renderer process, unless that renderer process is somehow waiting on the main process.
...
- 36.7k
2
votes
0
answers
129
views
Event loop delay
I have this simple code in NodeJs
const { eventLoopUtilization } = require('perf_hooks').performance;
const { monitorEventLoopDelay } = require('perf_hooks');
const h = monitorEventLoopDelay({ ...
- 108
0
votes
0
answers
84
views
How do debug and monitor blocked event loop in Node JS
I am using Express, Node 18, and JS for my back end. Also doing clustering using pm2.
Weirdly enough, I can see that some of my APIs get very slow randomly. CPU and Memory remain fine (I know because ...
- 241
0
votes
0
answers
45
views
qasync with IPython hangs on run_until_complete
I would like to have an asynchronous gui with PyQt5. The synchronous version of what I want would look like this:
from PyQt5.QtWidgets import QPushButton, QMainWindow
import asyncio
import time
import ...
- 1
1
vote
1
answer
54
views
When using AsyncClients in Google Cloud Python SDK, got future attached to a different loop
I'm quite new to using asyncio in Python. Originally I have a sync function speak:
from google.cloud import texttospeech
client = texttospeech.TextToSpeechClient()
def speak(*args):
# omitted
...
- 85