im4aLL

/*
An array A consisting of N integers is given. Rotation of the array means that each element is shifted right by one index, and the last element of the array is moved to the first place. For example, the rotation of array A = [3, 8, 9, 7, 6] is [6, 3, 8, 9, 7] (elements are shifted right by one index and 6 is moved to the first place).

The goal is to rotate array A K times; that is, each element of A will be shifted to the right K times.

Write a function:

function solution(A, K);

that, given an array A consisting of N integers and an integer K, returns the array A rotated K times.

im4aLL

/*
A binary gap within a positive integer N is any maximal sequence of consecutive zeros that is surrounded by ones at both ends in the binary representation of N.

For example, number 9 has binary representation 1001 and contains a binary gap of length 2. The number 529 has binary representation 1000010001 and contains two binary gaps: one of length 4 and one of length 3. The number 20 has binary representation 10100 and contains one binary gap of length 1. The number 15 has binary representation 1111 and has no binary gaps. The number 32 has binary representation 100000 and has no binary gaps.

Write a function:

function solution(N);

that, given a positive integer N, returns the length of its longest binary gap. The function should return 0 if N doesn't contain a binary gap.

im4aLL

class Event {
    static events = [];

    static listen(name, callback) {
        if (!Event.events[name]) {
            Event.events[name] = [];
        }

        Event.events[name].push(callback);
    }

im4aLL

/**
 * Serialize form value into Object
 *
 * @return jquery plugin
 */
$.fn.serializeObject = function (settings) {
    const o = {};
    let a = this.serializeArray();

    if (a.length > 0 && settings && settings.excludePrefix) {

im4aLL

{
  "scripts": {
    "start": "webpack-dev-server --open",
    "watch": "webpack --watch",
    "build": "cross-env NODE_ENV=production webpack --mode=production"
  },
  "browserslist": [
    "defaults"
  ],
  "devDependencies": {

im4aLL

Docker Commands, Help & Tips

Show commands & management commands

$ docker

Docker version info

im4aLL

// tested on angular 6

// Service
import { Injectable } from '@angular/core';
import { Observable, BehaviorSubject } from 'rxjs';

@Injectable({
  providedIn: 'root'
})
export class SomeService {

im4aLL

"use strict";

// Load plugins
const autoprefixer = require("autoprefixer");
const browsersync = require("browser-sync").create();
const cp = require("child_process");
const cssnano = require("cssnano");
const del = require("del");
const eslint = require("gulp-eslint");
const gulp = require("gulp");

im4aLL

/*
1. npm install @babel/core @babel/preset-env babelify browser-sync browserify gulp gulp-autoprefixer gulp-babel gulp-cssnano gulp-rename gulp-sass sass gulp-uglify vinyl-source-stream gulp-plumber --save-dev
2. create file `.babelrc` and insert
{
  "presets": ["@babel/preset-env"]
}
3. create file `.browserlistrc` and insert
{
    browsers: ['last 2 versions'],
    cascade: false

im4aLL

interface FieldInterface {
  name: string;
  rules: string[];
}

interface ErrorFieldInterface {
  name: string;
  message?: string;
}