let my_arr = [{id:1, name:"yanny"},{id:2, name:"Castrillon puerta"},{id:4, name:"Andres"},{id:6, name:"teso"}]
let new_arr = Object.assign([], my_arr)

// new_arr gets modified but my_arr DOESN'T gets modified
new_arr.push({id:5,name:"PAUL"})

// But when I execute next line BOTH array gets modified.
new_arr.filter(e => e.name == "yanny")[0].id = 23456789