for in loop javascript
var person = {"name":"taylor","age":31};
for (property in person) {
console.log(property,person[property]);
}
//name taylor
//age 31for in loop javascript
var person = {"name":"taylor","age":31};
for (property in person) {
console.log(property,person[property]);
}
//name taylor
//age 31async await in forloops
// Series loop
async (items) => {
for (let i = 0; i < items.length; i++) {
// for loop will wait for promise to resolve
const result = await db.get(items[i]);
console.log(result);
}
}
// Parallel loop
async (items) => {
let promises = [];
// all promises will be added to array in order
for (let i = 0; i < items.length; i++) {
promises.push(db.get(items[i]));
}
// Promise.all will await all promises in the array to resolve
// then it will itself resolve to an array of the results.
// results will be in order of the Promises passed,
// regardless of completion order
const results = await Promise.all(promises);
console.log(results);
}if statement in one-line for loop python
>>> [(i) for i in my_list if i=="two"]
['two']wait for loop to finish javascript
async function processArray(array) {
// map array to promises
const promises = array.map(delayedLog);
// wait until all promises are resolved
await Promise.all(promises);
console.log('Done!');
}Copyright © 2021 Codeinu
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