[1,2,3,4].at(1)//2
[1,2,3,4].pop()//[1,2,3]
[1,2,3,4].push(5)//[1,2,3,4,5]
[1,2,3,4].fill(1)//[1,1,1,1]
[1,2,3,4].join('-')//'1-2-3-4'
[1,2,3,4].shift()//[2,3,4]
[1,2,3,4].reverse()//[4,3,2,1]
[1,2,3,4].unshift(1)//[1,1,2,3,4]
[1,2,3,4].includes(2)//true
[1,2,3,4].map(num => num * 2)//[2,4,6,8]
[1,2,3,4].some(num => num > 3)//true
[1,2,3,4].find(num => num > 2)//3
[1,2,3,4].every(num => num > 3)//false
[1,2,3,4].filter(num => num > 2)//[3,4]
[1,2,3,4].findIndex(num => num > 2)//2
[1,2,3,4].reduce((acc,num) => acc + num)//10
Javascript Array Methods
