array-iterator-methods.js

/*

Objective:
Demonstrate your ability to use various array iterator methods
(forEach(), map(), filter(), find(), findIndex(), some(), every(), reduce())
to solve practical programming challenges.

Instructions:
Complete the tasks below using only the specified array iterator methods.
Submit your final outputs as specified for each task.

Tasks:
Task 1: Using forEach()
Start with the array:
let cities = ["New York", "Los Angeles", "Chicago", "Houston", "Phoenix"];

Use forEach() to log each city name to the console in uppercase.
Submit the output format:
Log output of each city in uppercase (console statements).


Task 2: Transforming with map()
Start with the array:
let numbers = [1, 2, 3, 4, 5];

Use map() to create a new array where each number is squared.
Submit the new array.


Task 3: Filtering with filter()
Start with the array:
let scores = [85, 42, 90, 75, 30, 100];

Use filter() to create a new array containing only the scores greater than or equal to 80.
Submit the new array.


Task 4: Finding with find() and findIndex()
Start with the array:
let items = ["apple", "banana", "cherry", "date"];

Use find() to locate the first fruit with more than 5 letters.
Use findIndex() to find the index of that fruit.
Submit the results as an array:
[foundFruit, foundIndex]


Task 5: Checking Conditions with some() and every()
Start with the array:
let temperatures = [72, 85, 90, 95, 100];

Use some() to check if at least one temperature is above 95.
Use every() to check if all temperatures are above 50.
Submit the results as an array:
[someResult, everyResult]


Task 6: Reducing with reduce()
Start with the array:
let prices = [10, 20, 30, 40];

Use reduce() to calculate the total sum of all prices.
Submit the total sum.

*/