CODEWITHSUNDEEP
javascriptjson
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Reputation: 584

Getting JSON key text with javascript

I Have this kind of JSON Object

"{\"date\": \" 9 Marzo\", \"time\": \" 07:00 - 13:20\", \"descrizione\": \" concerto\",   \"alimenti\": [{ \"macchina\":\"si\", \"pollo\":\"no\" }] }";

I want to get exactly the string "macchina" and "pollo", which are the keys text/value (I get the Object from an ajax, so "9 Marzo" would be like response.date), and same for "si" and "no", I cannot arrive to them. I have tryed console.log(response.alimenti[i][0]); but it's undefined.

i come from the cicle: for (i = 0; i < response.ruoli.length; i++)

Upvotes: 0

Views: 1630

Answers (3)

WojciechPolak
WojciechPolak

Reputation: 51

This will get you to the strings "macchina" and "pollo":

var json = "{\"date\": \" 9 Marzo\", \"time\": \" 07:00 - 13:20\", \"descrizione\": \" concerto\",   \"alimenti\": [{ \"macchina\":\"si\", \"pollo\":\"no\" }] }";
var obj = JSON.parse(json);
for (var k in obj.alimenti[0]) {
   console.log(k);
}

or their values:

for (var k in obj.alimenti[0]) {
   console.log(obj.alimenti[0][k]);
}

Upvotes: 1

mjwunderlich
mjwunderlich

Reputation: 1035

Using response.alimenti[i][0] won't work because alimenti is an array of object(s), not an array of arrays.

This instead:

var alimenti = response.alimenti[0];
console.log(alimenti.maccina);
console.log(alimenti.pollo);

Example: http://jsfiddle.net/zcuwfb9s/

Upvotes: 1

SNYDERHAUS
SNYDERHAUS

Reputation: 451

You'd be better off parsing the JSON object and then extracting the string from the javascript object.

i.e var obj = JSON.parse("{\"date\": \" 9 Marzo\", \"time\": \" 07:00 - 13:20\", \"descrizione\": \" concerto\",   \"alimenti\": { \"macchina\":\"si\", \"pollo\":\"no\" } }";);
console.log(obj.alimenti[0].macchina);

or pollo

console.log(obj.alimenti[0].pollo);

Also, that object structure is a little weird. You might want to remove the array from within the alimenti to better access the data.

Upvotes: 1

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