L
Size: a a a
L
L
DE
L
let a = [3, false, {a: 1}, {b: 2}]
console.log( a.some((e) => Object.hasOwnProperty.call(e, "b")) )
S
let a = [3, false, {a: 1}, {b: 2}]
console.log( a.some((e) => Object.hasOwnProperty.call(e, "b")) )
L
DE
В
let a = [3, false, {a: 1}, {b: 2}]
console.log( a.some((e) => Object.hasOwnProperty.call(e, "b")) )
L
L
B
B
B
B
В
МВ
B
В
B