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Selecting the JSON element

 2 years ago
source link: https://www.codesd.com/item/selecting-the-json-element.html
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Selecting the JSON element

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my JSON objects look like this:

[{"aid":"1","atitle":"Ameya R. Kadam"},{"aid":"2","atitle":"Amritpal Singh"},{"aid":"3","atitle":"Anwar Syed"},{"aid":"4","atitle":"Aratrika"},{"aid":"5","atitle":"Bharti Nagpal"}]

As you can see the names are differentiated through their associated aid's. Now suppose I want to display the name stacked with aid: 4. what js should i write for that?

You could loop over the elements of your array, testing, for each one, if its aid is 4 :

var list = [{"aid":"1","atitle":"Ameya R. Kadam"},
        {"aid":"2","atitle":"Amritpal Singh"},
        {"aid":"3","atitle":"Anwar Syed"},
        {"aid":"4","atitle":"Aratrika"},
        {"aid":"5","atitle":"Bharti Nagpal"}
    ];
var length = list.length;
var i;
for (i=0 ; i<length ; i++) {
    if (list[i].aid == 4) {
        alert(list[i].atitle);
        break; // Once the element is found, no need to keep looping
    }
}

Will give an alert with "Aratrika"


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