Problem 1 and 2

 1) 

// Remember, we're gonna use strict mode in all scripts now!

"use strict";

///////////////////////////////////////

// Using Google, StackOverflow and MDN

// PROBLEM 1:

// We work for a company building a smart home thermometer. Our most recent task is this: "Given an array of temperatures of one day, calculate the temperature amplitude. Keep in mind that sometimes there might be a sensor error."

const temperatures = [3, -2, -6, -1, "error", 9, 13, 17, 15, 14, 9, 5];

// 1) Understanding the problem

// - What is temp amplitude? Answer: difference between highest and lowest temp

// - How to compute max and min temperatures?

// - What's a sensor error? And what do do?

// 2) Breaking up into sub-problems

// - How to ignore errors?

// - Find max value in temp array

// - Find min value in temp array

// - Subtract min from max (amplitude) and return it

// function Expression

const calcTempAmplitude = function (temps) {

let max = temps[0];

let min = temps[0];

for (let i = 0; i < temps.length; i++) {

const curTemp = temps[i];

if (typeof curTemp !== "number") continue;

if (curTemp > max) max = curTemp;

if (curTemp < min) min = curTemp;

}

console.log(max, min);

return max - min;

};

const amplitude = calcTempAmplitude(temperatures);

console.log(amplitude);

2) Using arr1.concat(arr2) to merge two arrays

// PROBLEM 2:

// Function should now receive 2 arrays of temps

// 1) Understanding the problem

// - With 2 arrays, should we implement functionality twice? NO! Just merge two arrays

// 2) Breaking up into sub-problems

// - Merge 2 arrays

const calcTempAmplitudeNew = function (t1, t2) {

const temps = t1.concat(t2);

console.log(temps);

let max = temps[0];

let min = temps[0];

for (let i = 0; i < temps.length; i++) {

const curTemp = temps[i];

if (typeof curTemp !== "number") continue;

if (curTemp > max) max = curTemp;

if (curTemp < min) min = curTemp;

}

console.log(max, min);

return max - min;

};

const amplitudeNew = calcTempAmplitudeNew([3, 5, 1], [9, 0, 5]);

console.log(amplitudeNew);