ahallora

  function hexToRGBA (hex, opacity = 1) {
    const components = hex
      .replace('#', '')
      .match(/.{1,2}/g)
      .map(hextet => parseInt(hextet, 16))
      .concat(opacity)
      .join(', ');

    return `rgba(${components})`
  }

ahallora

/* 
   LICENSE: MIT
   Created by: Anders Holm-Jensen
   Website: allora.dk 
   Date: 25-oct-2017
   */
const timestamp = () => ( Math.round( new Date() * 1 / 1000) );

let tracker = {
  data: {

ahallora

// https://cdnjs.cloudflare.com/ajax/libs/js-sha1/0.6.0/sha1.min.js
/*
 * [js-sha1]{@link https://github.com/emn178/js-sha1}
 *
 * @version 0.6.0
 * @author Chen, Yi-Cyuan [emn178@gmail.com]
 * @copyright Chen, Yi-Cyuan 2014-2017
 * @license MIT
 */
!function(){"use strict";function t(t){t?(f[0]=f[16]=f[1]=f[2]=f[3]=f[4]=f[5]=f[6]=f[7]=f[8]=f[9]=f[10]=f[11]=f[12]=f[13]=f[14]=f[15]=0,this.blocks=f):this.blocks=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],this.h0=1732584193,this.h1=4023233417,this.h2=2562383102,this.h3=271733878,this.h4=3285377520,this.block=this.start=this.bytes=this.hBytes=0,this.finalized=this.hashed=!1,this.first=!0}var h="object"==typeof window?window:{},s=!h.JS_SHA1_NO_NODE_JS&&"object"==typeof process&&process.versions&&process.versions.node;s&&(h=global);var i=!h.JS_SHA1_NO_COMMON_JS&&"object"==typeof module&&module.exports,e="function"==typeof define&&define.amd,r="0123456789abcdef".split(""),o=[-2147483648,8388608,32768,128],n=[24,16,8,0],a=["hex","array","digest","arrayBuffer"],f=[],u=functio

ahallora

/*

  How to properly nest functions returning Promises (ECMA6) in node.js (Nested Promises example)

  generated output (with 1 second ticks) =>
    p1 function
    p2 function
    p3 function
    p3 done
    p2 done

ahallora

export class LambdaCacheController {
    constructor() {
        this.value = null;
        this.timestamp = null;
        this.ttl = 3000000; // default 5 minutes
    }

    async getValue() {
        return new Promise((resolve, reject) => {
            try {

ahallora

const timestampToExcelDate = timestamp => {
    const start = new Date("1899-12-30 00:00:00");
    return (timestamp - start) / (1000 * 60 * 60 * 24).toFixed(12);
};

ahallora

const mapCsvToJson = (csv, delimiter) => {
    const lines = csv.split("\n");
    let dataArray = [];
    let keys = [];

    for (i = 0; i < lines.length; i++) {
        const line = lines[i];
        const data = line.split(delimiter);

        if (i === 0) {

ahallora

<img src=x onerror="&#0000106&#0000097&#0000118&#0000097&#0000115&#0000099&#0000114&#0000105&#0000112&#0000116&#0000058&#0000097&#0000108&#0000101&#0000114&#0000116&#0000040&#0000039&#0000088&#0000083&#0000083&#0000039&#0000041">

ahallora

Math and JavaScript live problem solving - episode 1

Welcome to this mini series of me trying to solve a simple math problem with Javascript. I apologize in advance to everyone more capable in both math and javascript.

Today's objective

• Divide a number by 100 and limit the result's amount of decimals to 5 tops.
• Expected outcome: 49.95 becomes 0.4995 and 9.95 becomes 0.0995.

That's easy, you might think.

ahallora

const dotPathToObject = (pathStr, value) => pathStr
    .split(".")
    .reverse()
    .reduce((acc, cv, index) => ({
        [cv]: index === 1 && value ? {[acc]: value} : acc
    }))


console.log("expect:", JSON.stringify({
    "a": {