javascript - find nested object key by its value

Question

I\'m trying to find key of object which is containing my value.

There is my object:

var obj = {}

obj[\"post1\"] = {
    \"title\":    \"title1\",
    \         


        

Answer 1

You pretty much have it, just add obj[key].title === val as mentioned by Chris G.

Here's an ES6 one liner that returns an array of all matches.

var obj = {}

obj["post1"] = {
    "title":    "title1",
    "subtitle": "subtitle1"
}

obj["post2"] = {
    "title":    "title2",
    "subtitle": "subtitle2"
}

const filterByTitle = (obj, title) => 
  Object.values(obj).filter(o => o.title === title);

console.log(filterByTitle(obj, 'title1'))