how to create an array with subobjects of another array in angular - angularjs

Question

Hi guys i am really stuck here,
i am creating a basic comment rating system which has subcomment feature
as you see in comments array > "subcomments" entries are objects and i want create array with them but i dont know how because theyre in an array.
i tried this:
this.CommentsArray.forEach((item, i) => {
if([item]["subcomments"] != undefined) {
[item]["subcomments"].forEach((subitem, i) => {
subitem = this.subCommentsArray[i];
})
}
but its not working. any suggestions ?
thanks..
edit:
my data structure is like that:
"comments" : {
"d4894e47181e43b7a0fb8b7699" : {
"commentDate" : "2018-08-13T19:49:49.814Z",
"commentPhotoExistence" : false,
"commentRate" : "3",
"commentRateState" : false,
"commentTagState" : false,
"commentText" : "",
"commentUID" : "d4894e47181e43b7a0fb8b7699",
"commenterUID" : "17QYQbhmyQeIYocIZBwH8R7ojhg1",
"commenterUsername" : "Test2",
"subcomments" : {
"7c9f985d39334573b0211d18f1" : {
"subcommentDate" : "2018-09-01T11:57:10.523Z",
"subcommentText" : "EXAMPLE TEXT1",
"subcommentUID" : "7c9f985d39334573b0211d18f1",
"subcommenterUID" : "17QYQbhmyQeIYocIZBwH8R7ojhg1",
"subcommenterUsername" : "Test2"
},
"a1197fb32eae483ba8e910a748" : {
"subcommentDate" : "2018-09-01T11:29:57.514Z",
"subcommentText" : "EXAMPLE TEST 2",
"subcommentUID" : "a1197fb32eae483ba8e910a748",
"subcommenterUID" : "17QYQbhmyQeIYocIZBwH8R7ojhg1",
"subcommenterUsername" : "Test2"
},
"ad648a09a67c431c821bf8f290" : {
"subcommentDate" : "2018-09-01T11:57:01.452Z",
"subcommentText" : "example3",
"subcommentUID" : "ad648a09a67c431c821bf8f290",
"subcommenterUID" : "17QYQbhmyQeIYocIZBwH8R7ojhg1",
"subcommenterUsername" : "Test2"
},
"f7682639d4584642a18a9a4ad7" : {
"subcommentDate" : "2018-09-02T15:41:38.162Z",
"subcommentText" : "example4",
"subcommentUID" : "f7682639d4584642a18a9a4ad7",
"subcommenterUID" : "17QYQbhmyQeIYocIZBwH8R7ojhg1",
"subcommenterUsername" : "Test2"
}
}
}
the problem here is the subcomment id's are randomly added. in normally if it was Array i can use .forEach for use every item but there are random uid's between subcomments and subcomment properties. So all i want is create an array like including them, array will be like;
0: { "subcommentDate" : "2018-09-01T11:57:01.452Z",
"subcommentText" : "example3",
"subcommentUID" : "ad648a09a67c431c821bf8f290",
"subcommenterUID" : "17QYQbhmyQeIYocIZBwH8R7ojhg1",
"subcommenterUsername" : "Test2"
}
1: {
"subcommentDate" : "2018-09-01T11:57:01.452Z",
"subcommentText" : "example3",
"subcommentUID" : "ad648a09a67c431c821bf8f290",
"subcommenterUID" : "17QYQbhmyQeIYocIZBwH8R7ojhg1",
"subcommenterUsername" : "Test2"
}
2: {
"subcommentDate" : "2018-09-01T11:57:01.452Z",
"subcommentText" : "example3",
"subcommentUID" : "ad648a09a67c431c821bf8f290",
"subcommenterUID" : "17QYQbhmyQeIYocIZBwH8R7ojhg1",
"subcommenterUsername" : "Test2"
}
etc.

Answer 1

Your code is shadowing the variable i.
You're using is on your first line this.CommentsArray.forEach((item, i) => { then again on the subcomments.
this.CommentsArray.forEach((item, i) => {
if([item]["subcomments"] != undefined) {
[item]["subcomments"].forEach((subitem, z) => {
subitem = this.subCommentsArray[z];
})
}
});
But that's not the real problem. You're trying to iterate an object, not an array. The result will be coming back as;
{
"d48...669": {
"commentDate": '2019-08-13',
"subcomments": {
"7c9...8f1": {
},
"a11...748": {
}
}
}
}
You should iterate by the keys of the object;
Object.keys(this.CommentsArray).forEach(commentId => {
const comment = this.CommentsArray[commentId];
Object.keys(comment['subcomments']).forEach(subCommentId => {
const subComment = comment['subcomments'][subCommentId];
)};
});