abhinavnigam2207

/*
Make the below function calling work:

  myNumber(10)
    .subtract(3)
    .add(10,1,3)
    .value();

    myNumber(10)
    .add(7)

abhinavnigam2207

function sum(a) {
	var resp = a;
	function innerSum(b) {
		resp += b;
		return innerSum;
	}
	innerSum.toString = function(){
		return resp;
	}
	return innerSum;

abhinavnigam2207

function sum(a) {
	return function(b) {
		if(b){
			return sum(a+b);
		}
		return a;
	}
}

abhinavnigam2207

Function.prototype.myBind = function(...boundArgs) {
    let func = this;
    let context = boundArgs.shift();
    
    if (typeof this !== "function") {
        throw new Error(this + "cannot be bound as it's not callable");
    }

    return function(...targetArgs) {
        func.apply(context, args.concat(targetArgs));

abhinavnigam2207

Function.prototype.myCall = function(context, ...args) {
    context.fnName = this;
    context.fnName(...args);
}

/* Usage*/

function showProfileMessage(message) {
    console.log(message, this.name);
}

abhinavnigam2207

const debounce = (func, delay) => {
    let clearTimer;
    return function() {
        const context = this;
        const args = arguments;
        clearTimeout(clearTimer);
        clearTimer = setTimeout(() => func.apply(context, args), delay);
    }
}

abhinavnigam2207

const throttle = (func, limit) => {
    let lastFunc
    let lastRan
    return function() {
        const context = this
        const args = arguments
        if (!lastRan) {
            func.apply(context, args)
            lastRan = Date.now()
        } else {

abhinavnigam2207

// A retailer offers a rewards program to its customers, awarding points based on each recorded purchase. 
// A customer receives 2 points for every dollar spent over $100 in each transaction, 
// plus 1 point for every dollar spent over $50 in each transaction 
// (e.g. a $120 purchase = 2x$20 + 1x$50 = 90 points).
// Given a record of every transaction during a three month period,
// calculate the reward points earned for each customer per month and total.

function calculateRewards(price) {
    if (price >=50 && price < 100) {
        return price-50;

abhinavnigam2207

function sum(...args) {
    var resp = args.length==1 ? args[0] : args.reduce((key, acc) =>acc+=key,0);
    function innerSum(...args1) {
        let b = args1.length==1 ? args1[0] : args1.reduce((key, acc) =>acc+=key,0);
        resp += b;
        return innerSum;
    }
    innerSum.toString = function(){
        return resp;
    }

abhinavnigam2207

// https://www.coderbyte.com/editor/guest:Eight%20Queens:JavaScript
//
// Have the function EightQueens(strArr) read strArr which will be an array
// consisting of the locations of eight Queens on a standard 8x8 chess board
// with no other pieces on the board. The structure of strArr will be the
// following: ["(x,y)", "(x,y)", ...] where (x,y) represents the position of the
// current queen on the chessboard (x and y will both range from 1 to 8 where
// 1,1 is the bottom-left of the chessboard and 8,8 is the top-right). Your
// program should determine if all of the queens are placed in such a way where
// none of them are attacking each other. If this is true for the given input,