Update all keys with particular value in OrderMap using immutableJs - javascript-objects

Question

I am trying to find the better way to iterate over all keys using immutableJs.
(Basically, I would like to update all the value in the Map at once.)
Tried by changing tdata.setIn([tdata.keySeq(), "comments"], value =>”new Comment”); setIn , UpdateIn - Deep Persistent Change methods in Immutable
let data = [
{
id: "1",
isSelected: false,
isStarred: false,
comments: “comments”,
title: “Title1”,
userName: “uName”
},
{
id: "2",
isSelected: false,
isStarred: false,
comments: “comments”,
title: “Title1”,
userName: “uName”
},
{
id: "3",
isSelected: false,
isStarred: false,
comments: “comments”,
title: “Title1”,
userName: “uName”
},
{
id: "4",
isSelected: false,
isStarred: false,
comments: “comments”,
title: “Title1”,
userName: “uName”
},
{
id: "5",
isSelected: false,
isStarred: false,
comments: “comments”,
title: “Title1”,
userName: “uName”
}
]
let tData = OrderedMap();
for (let i = 0; i < data.length; i++) {
let values = Map(data[i]);
tData = tData.set(data[i].id, values);
}
tdata.updateIn([“2”, "comments"], value =>”new Comment”);
Rather than explicitly specifying key ="2", am looking to update entire Map
Thanks for any help

Answer 1

It sounds like you want to use the map function.
const data = fromJS({
a: {comment: "1"},
b: { comment: "2"},
c: {count: "3"}
);
const newData = data.map((key, value) => {
if (value.get("comment") == "2")
return value.set("comment", "new comment")
else
return value
});