Accessing JSON Elements

Accessing JSON elements from javascript

Try this:

data[0].holiday.name

The data looks like this:

[
  {
    "holiday":{
      "id":1,
      "date":"2012-05-01",
      "name":"Dia del trabajo",
      "description":"",
      "country_id":1,
      "moved_date":"2012-04-30"
    }
  },
  {
    "holiday":{...}
  },
...]

So, you need to select the first element from the main array (data[0]), then get its holiday property (data[0].holiday), and then get its name property.

Accessing JSON elements

import json
weather = urllib2.urlopen('url')
wjson = weather.read()
wjdata = json.loads(wjson)
print wjdata['data']['current_condition'][0]['temp_C']

What you get from the url is a json string. And your can't parse it with index directly.
You should convert it to a dict by json.loads and then you can parse it with index.

Instead of using .read() to intermediately save it to memory and then read it to json, allow json to load it directly from the file:

wjdata = json.load(urllib2.urlopen('url'))

Accessing elements in a json object

The data[1] holds a JSON string, not an object so you have to parse it using JSON.parse method.

console.log(JSON.parse(data[1]).temperature);

Final code:

realTime() {
    this.webSocket.connect()
      .subscribe((data:any[]) => {
         console.log(data)
         let data1 = JSON.parse(data[1]);
         console.log(data1.temperature)
         this.device_id = data1.id
         this.temperature = data1.temperature
         this.humidity = data1.humidity
      })

}

Accessing json elements gives undefined error

Is your JSON stored in your variable as a string? Try:

console.log(JSON.parse(result).list.ds)

The reason I ask is that the text Uncaught TypeError: Cannot read property 'ds' of undefined tells me that your result variable does not have a list property, which your JSON clearly would if it were an object, but it most assuredly would not if you had accidentally forgotten to parse your JSON string.

accessing json elements in dart

change List<Map> to List<dynamic>

Accessing JSON elements with Python and Pandas

If you have the dataframe like this:

        id     name state country                                  coord
0  5074329  Oakland    NE      US  {'lon': -96.466972, 'lat': 41.835831}
1  5074472    Omaha    NE      US    {'lon': -95.93779, 'lat': 41.25861}

1. To access lon you can use the str method:

df['lon'] = df.coord.str['lon'] 

#output
        id     name state country                                  coord  \
0  5074329  Oakland    NE      US  {'lon': -96.466972, 'lat': 41.835831}   
1  5074472    Omaha    NE      US    {'lon': -95.93779, 'lat': 41.25861}   

         lon  
0 -96.466972  
1 -95.937790 

2. I guess you wanna do boolean indexing here:

city =  'Omaha'
state = df.loc[df['name'] == city]['state']

The above code will return the pandas series. If you want only the 1st value use iloc:

city =  'Omaha'
state = df.loc[df['name'] == city]['state'].iloc[0]

# output
'NE'

3. This is quite similar to the 2nd part:

city = 'Omaha'
state = 'NE'
suset_df = df.loc[(df['name'] == city) & (df['state'] == state)]

# OUTPUT
        id   name state country                                coord       lon
1  5074472  Omaha    NE      US  {'lon': -95.93779, 'lat': 41.25861} -95.93779

How to access JSON element from jQuery Ajax

You have first to parse your JSON:

var tasksData = JSON.parse(task);

Then you can loop through your tasks as below:

$.each(tasksData.tasksLib, function(i, task){
    console.log(task.id);
}

How to access element in json using python?

Try this and for the next ones use indexes like 1 or 2 if you have more, or you can loop if you have multiple indexes within the json.

str1new = str1['result'][0]['aa']

Accessing JSON object properties directly and log it

Are you looking for something like this:

function parseObject(obj){   for(var key in obj)   {      console.log("key: " + key + ", value: " + obj[key])      if(obj[key] instanceof Object)      {        parseObject(obj[key]);      }   }}

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