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TypeScript 2022-03-27 19:30:45
typescript promise
new Promise<boolean>((res, rej) => { res(true); }) .then(res => { console.log(res); return false; }) .then(res => { console.log(res); return true; }) .then(res => { console.log(res); }) .catch(error => { console.lo... Add solution -
Javascript 2022-03-24 00:20:07
js sleep
const sleep = (milliseconds) => { return new Promise(resolve => setTimeout(resolve, milliseconds)) } /*Use like so*/ async function timeSensativeAction(){ //must be async func //do something here await sleep(5000) //wait 5 seconds //contin... Add solution -
Javascript 2022-03-17 16:55:10
polkadot UnhandledPromiseRejectionWarning: Error: Api needs to be initialized before using, listen on 'ready'
import { ApiRx } from '@polkadot/api'; // initialise via static create const api = await ApiRx.create().toPromise(); // make a call to retrieve the current network head api.rpc.chain.subscribeNewHeads().subscribe((header) => { console.log(`Chain is... Add solution -
Javascript 2022-03-16 21:05:03
my js
const express = require('express') const app = express() const port = 3000 app.get('/', (req, res) => res.send('Hello World!')) var points = [40, 100, 1, 5, 25, 10]; points.sort((a,b) => a-b) var newArray = array.filter(function(item) { return ... Add solution -
Javascript 2022-03-16 10:45:02
await reserved word testcafe using await in loop
async function foo(things) { const results = []; for (const thing of things) { // Good: all asynchronous operations are immediately started. results.push(bar(thing)); } // Now that all the asynchronous operations are running, here we wait ... Add solution
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