thegitfather

Vanilla JavaScript Quick Reference / Cheatsheet

Just migrated it from Codepen.io to markdown. Credit goes to David Conner.

Working with DOM	Working with JS	Working With Functions
Accessing Dom Elements	Add/Remove Array Item	Add Default Arguments to Function
Grab Children/Parent Node(s)	Add/Remove Object Properties	Throttle/Debounce Functions
Create DOM Elements	Conditionals

nealrs

var Excel = require('exceljs');

// create workbook & add worksheet
var workbook = new Excel.Workbook();
var worksheet = workbook.addWorksheet('Discography');

// add column headers
worksheet.columns = [
    { header: 'Album', key: 'album'},
    { header: 'Year', key: 'year'}

syafiqfaiz

1. Change your database RDS instance security group to allow your machine to access it.
   • Add your ip to the security group to acces the instance via Postgres.
2. Make a copy of the database using pg_dump
   • $ pg_dump -h <public dns> -U <my username> -f <name of dump file .sql> <name of my database>
   • you will be asked for postgressql password.
   • a dump file(.sql) will be created
3. Restore that dump file to your local database.
   • but you might need to drop the database and create it first
   • $ psql -U <postgresql username> -d <database name> -f <dump file that you want to restore>

• the database is restored

tejacques

import * as React from 'react';
import { Component } from 'react';

export default function HOCBaseRender<Props, State,  ComponentState>(
    Comp: new() => Component<Props & State, ComponentState>) {
    return class HOCBase extends Component<Props, State> {
        render() {
            return <Comp {...this.props} {...this.state}/>;
        }
    }

Restuta

Below is the list of modern JS frameworks and almost frameworks – React, Vue, Angular, Ember and others.

All files were downloaded from https://cdnjs.com and named accordingly. Output from ls command is stripped out (irrelevant stuff)

As-is (minified)

$ ls -lhS
566K Jan 4 22:03 angular2.min.js

loretoparisi

<html>
  <head>
    <!-- adapted from http://charlesleifer.com/blog/using-python-and-k-means-to-find-the-dominant-colors-in-images/ -->
    <script type="text/javascript">
      function euclidean(p1, p2) {
        var s = 0;
        for (var i = 0, l = p1.length; i < l; i++) {
          s += Math.pow(p1[i] - p2[i], 2)
        }

jasperf

#!/bin/bash
echo "Setting up Roots Trellis with Bedrock
Requirements
Ansible >= 1.9.2
Virtualbox >= 4.3.10 - Install
Vagrant >= 1.5.4
vagrant-bindfs >= 0.3.1 (Windows users may skip this)
vagrant-hostsupdater
PHP >=5.4
Composer"

AmirHossein

// Demo: http://jsfiddle.net/xuyp8qb5/
// Note: You need Google Map API Key to run demo; bit.ly/2pBgToW

var latlng;
latlng = new google.maps.LatLng(40.730885, -73.997383); // New York, US
//latlng = new google.maps.LatLng(37.990849233935194, 23.738339349999933); // Athens, GR
//latlng = new google.maps.LatLng(48.8567, 2.3508); // Paris, FR
//latlng = new google.maps.LatLng(47.98247572667902, -102.49018710000001); // New Town, US
//latlng = new google.maps.LatLng(35.44448406385493, 50.99001635390618); // Parand, Tehran, IR
//latlng = new google.maps.LatLng(34.66431108560504, 50.89113940078118); // Saveh, Markazi, IR

linhmtran168

#!/bin/sh

STAGED_FILES=$(git diff --cached --name-only --diff-filter=ACM | grep ".jsx\{0,1\}$")

if [[ "$STAGED_FILES" = "" ]]; then
  exit 0
fi

PASS=true

kevinelliott

#!/bin/sh
#
# import_mysql_db - Drops the database and then imports it from sql file
#
# 2015-02-26, Kevin Elliott, kevin@catalyzed.io
#

if [ $# -ne 3 ];
then
  echo "syntax: import_mysql_db <database_user> <database_name> <sql_file>";