Sidd27

function curry(fn) {
  var arity = fn.length;
  return (function resolver() {
    var memory = Array.prototype.slice.call(arguments);
    return function () {
      var local = memory.slice(),
        next;
      Array.prototype.push.apply(local, arguments);
      next = local.length >= arity ? fn : resolver;
      return next.apply(null, local);

Sidd27

import { Pipe, PipeTransform } from '@angular/core';

@Pipe({
  name: 'indianCurrency'
})
export class IndiaCurrencyPipe implements PipeTransform {

  transform(amount: any, args?: any): string {
    if (amount !== null && !isNaN(amount)) {
      const currencySymbol = '₹ ';

Sidd27

db.getCollection('companydetails').aggregate([
    { "$group": {
        "_id": { "$toLower": "$state" },
        "count": { "$sum": 1 }
    } },
    { "$group": {
        "_id": null,
        "counts": {
            "$push": { "k": "$_id", "v": "$count" }
        }

Sidd27

Array.prototype.mash = function(callback) {
    const addKeyValuePair = (acc, item) => {
        const [key, value] = callback ? callback(item) : item
        return {...acc, [key]: value}
    }

    return this.reduce(addKeyValuePair, {})
}

Sidd27

Array.prototype.scan = function (callback, initialValue) {
  const appendAggregate = (acc, item) => {
    const aggregate = acc[acc.length-1] //get last item
    const newAggregate = callback(aggregate, item)
    return [...acc, newAggregate]
  }

  const accumulator = [initialValue]

  return this.reduce(appendAggregate, accumulator)

Sidd27

function debounce(func, wait, immediate) {
	var timeout;
	return function() {
		var context = this, args = arguments;
		var later = function() {
			timeout = null;
			if (!immediate) func.apply(context, args);
		};
		var callNow = immediate && !timeout;
		clearTimeout(timeout);

Sidd27

let getFileName = function (header) {
    let contentDispostion = header.split(';');
    const fileNameToken = `filename*=UTF-8''`;

    let fileName = 'downloaded.pdf';
    for (let thisValue of contentDispostion) {
        if (thisValue.trim().indexOf(fileNameToken) === 0) {
            fileName = decodeURIComponent(thisValue.trim().replace(fileNameToken, ''));
            break;
        }

Sidd27

function MyPromise(executor) {
  let onResolve, onReject;
  let fulfilled = false,
    rejected = false,
    called = false,
    value;

  function resolve(v) {
    fulfilled = true;
    value = v;