angular2 How to get json id key?

Question

I'm trying to get JSON data from the server. I succeed to make a request that returns the data, but I can't access the collection key. I printed the whole object, and the key exists, but I don't know how to get it. I want to get the key value like "-Ki0NyOnNuPFbtkUSIgs" , here is the console output and my code, any help, please ??

Object printed in the console and Here my code

Answer 1

Use for.in to access the key values of the object like:

var test = {jfhajsk: 'sdgfdg', '-ksdakahcsak': 'asfdwf', 1: 34, 3: 'dsgfg'}
for(var i in test) {
    console.log(i);//Will print jfhajsk, -ksdakahcsak, 1 and 3
    console.log(test[i]);//Will print sdgfdg, asfdwf, 3 and dsgfg
}

If you want to simply print the value of the specified key, just do console.log(variable_name['-Ki0NyOnNuPFbtkUSIgs'])

Answer 2

Since you just have one key in your object you can use Object.keys(row)[0]

 let data = [ {"Ki0NyOnNuPFbtkUSIgs": {date: '', desc: ''}}, {"Ki0NyOnNuPFbtkUS123": {date: '', desc: ''}}, {"Ki0NyOnNuPFbtkUS456": {date: '', desc: ''}} ] for(i = 0; i < data.length; i++) { let row = data[i]; console.log(Object.keys(row)[0]); }