Listen to changes in inner arrays

[rodikh]

js-arrays listens to pushes and other changes on top-level properties of it's objects, but not on nested arrays.

let arr = [
    {"id":1, "members": ["abc", "def"]},
    {"id":2, "members": ["ghi", "jkl", "mno"]},
    {"id":3, "members": ["pqr", "stu"]}
];
arr[0].members.push("vwx")

Either add listeners to children or treat as out of scope.