KEIII

/**
 * Find into all collections.
 * 
 * @param {{}} query
 * @param {[]} fields
 * @param {{}} sort
 * 
 * @return {Array}
 */
function findAll(query, fields, sort) {

KEIII

const createSelector = (...selectors) => {
  let last = selectors.pop();

  return state => {
    let args = selectors.map(selector => selector(state));
    
    return last.apply(null, args);
  }
};

KEIII

// tslint:disable:no-any directive-selector

import { Directive, Input, TemplateRef, ViewContainerRef } from '@angular/core';

/**
 * Declare a variable in the template.
 * Eg. <i *ngVar="false as variable">{{ variable | json }}</i>
 */
@Directive({selector: '[ngVar]'})
export class NgVarDirective {

KEIII

alert('I am stealing your local storage... ha-ha');
console.log(localStorage);

KEIII

<canvas id=canvas width=360 height=360>

KEIII

// The core function is ported from clipboard.js
// https://github.com/zenorocha/clipboard.js/

const isCopySupported = (doc: Document): boolean => {
  return Boolean(doc.queryCommandSupported && doc.queryCommandSupported('copy'));
};

/**
 * Creates a fake textarea element, sets its value from `text` property,
 * and makes a selection on it.

KEIII

import { FormControl } from '@angular/forms';
import { concat, of, Observable } from 'rxjs';
import { map } from 'rxjs/operators';

type Nullable<T> = T | null;

/**
 * @see AbstractControl.status
 */
export enum RxFormControlStatus {

KEIII

/**
 * Convert zoom level to range.
 *
 * @param {number} zoomLevel   The zoom level in meters
 * @param {number} latitude    The latitude in radians
 * @param {number} canvasWidth The canvas width in px
 * @param {number} scaleFactor The scale factor (e.g. window.devicePixelRatio)
 * @param {number} fov         The FOV in degrees (e.g. 60)
 * @param {number} globeRadius The globe radius in meters (e.g. 6378137)
 *

KEIII

const zeroPad = (n: number) => n < 10 ? '0' + n : String(n);

const getTimezoneStr = (date: Date): string => {
  const tz_offset_min = date.getTimezoneOffset();
  const offset_hrs = Math.abs(tz_offset_min / 60);
  const offset_min = Math.abs(tz_offset_min % 60);

  return tz_offset_min === 0
    ? 'Z'
    : `${tz_offset_min > 0 ? '-' : '+'}${zeroPad(offset_hrs)}:${zeroPad(offset_min)}`;

KEIII

import { BehaviorSubject, Observable, Subscription } from 'rxjs';

export class RxRpc<P, R> {
  constructor(private readonly cmd: (params: P) => Observable<R>) {}

  private subscription: Subscription | null = null;

  private readonly _pending$ = new BehaviorSubject(false);
  public readonly pending$ = this._pending$.asObservable();