[…new Set(arr)]
var Arr = [...new Set(arr)]
console.log(Arr)
//1, "true", true, 15, false, undefined, null, NaN, "NaN", 0, "a", {…}, {…}
var Arr = [...new Set(arr)]
console.log(Arr)
//1, "true", true, 15, false, undefined, null, NaN, "NaN", 0, "a", {…}, {…}