Chuloo

// Array of students
const students = [{name: 'John', score: 50} , {name: 'Peter', score: 60}, {name: 'James', score: 55}];

// Threshold Score
const passScore = 50;

// Test students
const studentsPassed = students.every(student => student.score >= passScore);

// Display status

Chuloo

// Create new array
const array = [2, 5, 10, 8, 20]

// Create test function
const testFunction = number => number % 5 === 0

// Apply function
const result = array.some(testFunction)

// Display result

Chuloo

// Array of objects
const users = [{firstName: 'Peter', lastName: 'Parker'}, {firstName: 'Harry'}];

// Verify properties of an object
let hasLastName = users.some(function(user){
  return !!user.lastName;
})

// Output result
console.log(hasLastName);

Chuloo

// Array of names
const names = ['john', 'chris', 'mike', 'holly', 'will']

// Convert to string
const stringNames = names.toString()

// Output string
console.log(stringNames)

Chuloo

// Create array with strings
const values = ['1', '2', '3', '4'];

// Convert array to string separated by a comma
const string = values.toString();

// Output string
console.log(string);

Chuloo

// Create array of numbers
let array = [1, 2, 3, 4, 5]

// Double each number and display
array.forEach(function(number){
  console.log(number*2)
})

Chuloo

// Create new array
const students = ['Jerry', 'Mary', 'Brenda', 'John'];

// Create empty array to be copied into
const classA = [];

// Copy names into new array
students.forEach(student => {
  classA.push(student)
});

Chuloo

// Array of dates
const days = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'];

// with for loop

for(i = 0; i < days.length; i++){
  console.log(days[i]);
}

console.log('----------------------')

Chuloo

//  Create an array of names
const classNames = ['amazon', 'facebook', 'google', 'scotch']

// Verify inclusion in classNames
let partOfClass = classNames.includes('microsoft')

// Output result
console.log(partOfClass)

Chuloo

// Weekdays
const days = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'];

// Random month
const month = 'May';

// Verify inclusion in array
const isDay = days.includes(month);

// Output result