techsin

Installing Postgres via Brew

Pre-Reqs

Brew Package Manager

In your command-line run the following commands:

1. brew doctor
2. brew update

techsin

var LRUCache = function(capacity) {
    this.hash = {};
    this.capacity = capacity;
    this.counter = 0;
};

LRUCache.prototype.get = function(key) {
    const obj = this.hash[key];
    
    if (typeof obj === "undefined") {

techsin

/* Setup */
class Node {
  left = null;
  right = null;
  constructor(val) {
    this.val = val;
  }
}

const A = new Node('A');

techsin

var str = '-¯-_';
var i;
var j = 0;
document.title = '‎';
setInterval(function(){
    document.title = document.title + str[j++];
    j = j % str.length;
    i = i || 0;
    i = ++i % (str.length * 5);
    if (!i) document.title = '‎';

techsin

var numIslands = function(grid) {
    let islands = 0;
    for (let i = 0; i < grid.length; i++) {
        for (let j = 0; j < grid[i].length; j++) {
            if (grid[i][j] == 1) {
                markRecur(i, j, grid);
                islands++;
            }
        }
    }

techsin

document.querySelectorAll('audio').forEach((au) => {
  const url = au.currentSrc;
  fetch(url).then(r => r.blob()).then(obj => downloadAudio(obj));
})

function downloadAudio(blob) {
  const ele = document.createElement('a');
  let counter = 0;

  downloadAudio = function (blob) {

techsin

console.log('%cFrom the 3rd party -------------', 'font-weight: bold;');
document.cookie = `test=; expires=${new Date().toGMTString()}`;
console.log(document.cookie);

console.log('%cwriting cookie...', 'font-weight: bold;');
document.cookie = 'test=123';

console.log('%coutput', 'font-weight: bold;');
console.log(document.cookie);

techsin

function wrk() {
  var blobURL = URL.createObjectURL(new Blob(['(',

    function () {
      for (let i = 0; i < 5000000000; i++) { } console.log(1000);
    }.toString(),

    ')()'], { type: 'application/javascript' }));

  const worker = new Worker(blobURL);

techsin

// $container - css selector for nodes that need to be sorted
// $number - css selector for node with number

function sortElements($container, $number) {
  const hash = new Map();
  const list = Array.from(document.querySelectorAll($container));

  for (let i = 0; i < list.length; i++) {
    for (let j = i; j < list.length; j++) {
      const element = list[i];

techsin

let str = document.cookie;

let obj = {};

let key = '';
let value = '';
let isValue = false;
for (let i = 0; i < str.length; i++) {
    let char = str[i];