vijeetgv

Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

Array

Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

slyphon

// Copyright 2018 Jonathan Simms
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation

alinhle

// Jest assertions will not fail if they live inside a try-catch block due to
// https://github.com/facebook/jest/issues/3917.

// This file returns a version of `expect` that fails 
// the test immediately when an exception is thrown.

/**
 * isPromise detects whether given object is a promise or not.
 */
const isPromise = obj =>

tathamoddie

@echo off

REM If PowerShell 2 is not installed, this script will automatically download and install it.
REM Only works on XP SP3 with .NET 3.5. Only for dev boxes, not designed for servers.
REM Based on http://blog.codeassassin.com/2009/12/10/no-web-browser-need-powershell/

ver | find "XP" > nul
if %ERRORLEVEL% neq 0 goto not_xp

ver | find "5.1.2600" > nul

nomand

;===========================================================================================================================================
; Additional Modifications by nomand
;==========================================================================================================================================
;
; - fixed Media_Next functinality
; - moved Eject key screenshots to active window screenshot shortcut (Ctrl+F3)
; - restored Lctrl <> Fn swap
; - restored page up/down, home/end functinality
; - F12 Insert remap kept disabled
; - cleaned up code indentations and comments

fracz

import {memoize, clearMemoizedValue} from "./memoize";

describe("memoize", () => {
  class MyClass {
    @memoize(5)
    getNumber() {
      return Math.random();
    }
  }

AugustoCiuffoletti

How to create a MongoDB server in a OpenStack infrastructure

This tutorial guides thorough the steps needed to implement an Ubuntu 20.04 OpenStack instance running a MongoDB server. The resulting server is opened only to hosts inside the infrastructure, and is optionally accessible from the outside using ssh. The data of the database are hosted in a single OpenStack volume, data replication is not covered here.

The steps are the following:

• creation of the compute instance
• creation of the volume
• linking the volume to the instance
• install mongodb

laser

data Failable t e = Success t | Failure e

johnkoht

// Main containers
.container
  @include outer-container

// Rows
.row
  @include row()


// A basic column without a defined width or height

iPublicis

#########
# File: myapp-node-watcher.path
#
# Save this to /etc/systemd/system/
# Run systemctl enable myapp-node-watcher.path && systemctl daemon-reload && systemctl start myapp-node-watcher.path
#
[Path]
PathModified=/home/myuser/myappdir/public_html

[Install]