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// Array in ES5/ES6
const boxes = document.querySelectorAll('.box')


// ES5
var boxesArr5 = Array.prototype.slice.call(boxes)
boxesArr5.forEach(function(element) {
    console.log('ES5')
    return element.style.backgroundColor = 'dodgerblue'
}, this);


// ES6
var boxesArr6 = Array.from(boxes)
boxesArr6.forEach(element => element.style.backgroundColor = 'dodgerblue')
console.log('ES6')
console.log(boxesArr6)



// ES5
for (var i = 0; i < boxes.length; i++) {
    var element = boxes[i];
    if (element.className === 'box blue') {
        console.log(element)
        break
    }
    element.textContent = 'I\'ve changed!'
}

// ES6
for (const x of boxes) {
    if (x.className.includes('blue')) {
        x.textContent = 'I\'ve changed!'
        break
    }
}



// ES5
var ages = [2, 1, 3, 35, 45, 30, 36, 42, 55]
var full = ages.map(function(element) {
    return element >= 36
});
console.log(full)

// ES6
var full = ages.find(element => element >= 3)
console.log(full)



//Array.from - 2
function sumAll () {
	const nums = Array.from(arguments);
	return nums.reduce((prev, next) =>  prev + next, 0);
}

sumAll(5,8,7,3,6,55555,888,9654);