forEach filter map reduce find

index.js

let people = [
    {name: 'Mihail', age: 15, budget: 100},
    {name: 'Maria', age: 25, budget: 200},
    {name: 'Miron', age: 35, budget: 300},
]

people.forEach((person, index, pArr) => {
    console.log(person)
    console.log(person.name)
    console.log(person.age)
    console.log(person.budget)
    console.log(index)
    console.log(pArr)
})

let new_data = people.map(person => person.age * 3)
console.log(new_data)
// 0: 45
// 1: 75
// 2: 105

let adults = people.filter((person, index, pArr) => person.age >= 18)
console.log(adults)
// 0: {name: "Maria", age: 25, budget: 200}
// 1: {name: "Miron", age: 35, budget: 300}

let amount = people.reduce((total, person) => total + person.budget, 2000000)
console.log(amount) // 2000600

let maria = people.find(person => person.name === 'Maria')
console.log(maria) // {name: "Maria", age: 25, budget: 10000}

let igorindex = people.findIndex(person => person.name === 'Maria')
console.log(igorindex) // 1