Useful JavaScript Methods

// for loops are the most performant, but these methods are useful given specific tasks

const items = [
	{ name: 'Bike',			price: 100	},
	{ name: 'TV',				price: 200	},
	{ name: 'Album',		price: 10		},
	{ name: 'Book',			price: 5		},
	{ name: 'Phone',		price: 500	},
	{ name: 'Computer',	price: 1000	},
	{ name: 'Keyboard',	price: 25		},
]

// filter
// const filteredItems = items.filter((item) => {
// 	return item.price <= 100
// })

// map
// const itemNames = items.map((item) => {
// 	return item.name
// })

// find
// const foundItem = items.find((item) => {
// 	return item.name ===  'Book'
// })

// forEach
// items.forEach((item) => {
// 	console.log(item.name)
// })

// some (any)
// const hasInexpensiveItems = items.some((item) => {
// 	return item.price <= 100;
// })

// every (all)
// const hasInexpensiveItems = items.every((item) => {
// 	return item.price <= 100;
// })

// reduce
// inital parameter is what to reduce into + starting value, 0)
// const total = items.reduce((currentTotal, item) => {
// 	return item.price + currentTotal;
// }, 0)

// includes
// const l = [1,2,3,4,5]
// const includesTwo = l.includes(2)

console.log(includesTwo)