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Delete last commit from git

First way

git reset --hard HEAD~1
git push --force

Another way

SeLub

Generate a UUID in the browser

const url = URL.createObjectURL(new Blob());
const UUID = url.substring(url.lastIndexOf('/') + 1);

https://medium.com/teads-engineering/generating-uuids-at-scale-on-the-web-2877f529d2a2

SeLub

How to start MongoDB and Mongo Express with docker compose

We use mongo:4.4.6 because of Error: MongoDB 5.0+ requires a CPU with AVX support. Container failed to start Solution from here: https://stackoverflow.com/questions/70818543/mongo-db-deployment-not-working-in-kubernetes-because-processor-doesnt-have-avx You may be can use mongo:latest

docker-compose.yml

version: "3.8"

SeLub

Task

console.log '1' after 1 second,
'2' after 2 seconds and
'3' after 3 seconds after start of the program.

setTimeout

The delay parameter only guarantees that your callback will not execute before that time has elapsed. Other queued tasks or operations could delay it further than the specified time.

const startTime = process.hrtime();

SeLub

Binary Search Task

Task: We have an array sorted in ascending order:

a = [ 3, 4, 6, 9, 10, 12, 14, 15, 17, 19, 21 ]; Define a function f(a, x) that would return x, the nearest smallest number, or -1 on error.

Example: