How to access nested JSON array data with angular, filtered by array parameter?

Question

Using info returned from an API in the form of JSON, I am trying to manipulate the following data:

"results": [
    {
        "url": "etcetc",
        "id": 1,
        "user": {
            "url": "etcetc",
            "id": 2,
            "email": "[email protected]",
            "username": "example",
            "first_name": "mister",
            "last_name": "sample"
        },
        "data1": "String",
        "data2": 10,
        "data3": 6,
        "data4": 12000,
        "data5": 0.3333333333333333
    }

so there are several objects returned under "results", and each object has its own set of data1-5. Using Angular, what is the best way to search for the object with the highest data5, and return the rest of the info for that particular object? So I'd print out data1-5 for the array object with the highest data5 value, if that makes sense.

adeneo · Accepted Answer · 2016-03-05 05:37:43Z

4

Assuming you have an object, not JSON, or parse the JSON into an object, you can use Array.reduce

var max = obj.results.reduce(function(a,b) {
    return a.data5 > b.data5 ? a : b;
});

FIDDLE

ES2015 version

var max = obj.results.reduce( (a, b) => a.data5 > b.data5 ? a : b );

edited Mar 5, 2016 at 5:37

answered Mar 5, 2016 at 5:32

adeneo

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Comments

Ayush · Accepted Answer · 2016-03-05 05:31:57Z

0

A simple for-each loop is all you need:

highest = results[0]  // seed highest with the first element

results.forEach(function(el) {
  if (el['data5'] > highest['data5'])
    highest = el
})

answered Mar 5, 2016 at 5:31

Ayush

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