$ .getJSON（）到$ .ajax（）

I would like to ask how could I convert the following $.getJSON() to $.ajax() please.
I have a set of arrays from var googleApi like this:

Array [Object, Object, Object, Object, Object]

// if stringified
[{"id":"0","name":"user1","type":"mf","message":"bonjour user1"},
{"id":"1","name":"user2","type":"ff","message":"hello user2"},
{"id":"2","name":"user3","type":"mm","message":"konnichiwa user3"},
{"id":"3","name":"user4","type":"mf","message":"ni hao user4"},
{"id":"4","name":"user5","type":"ff","message":"high 5! user5"}]}

I would like to ask how could I identify if the value of a declared variable (eg. content with the value of user1) is the same as a value within the list of name keys in the array?

Below is my attempt and you might find my full code in $.getJSON() here:

$.getJSON():

var googleApi = 'https://api.com/url_here';

$.getJSON(googleApi, function(json){

    console.log(JSON.stringify(json));
    var item = json.result.find(function(e){

    return e.name == content;

    }) || json.result[0];           
    console.log("PRINT ID: " + item.id);

    var name = item.name || content;                    
    $('#nameText').text(name);
    console.log("Name: " + name);
});

Below is my attempt on $.ajax() but I got an error of "TypeError: data.result is undefined";
I have also tried using $(this) to replace data.result but without luck... it would be very nice if someone could identify what have I done wrong please:

var googleApi = "https://sheetsu.com/apis/v1.0/f924526c";
var googleKey = "0123456789";
var googleSecret = "987654321";

var data = [];
$.ajax({
    url: googleApi,
    headers: {
    "Authorization": "Basic " + btoa(googleKey + ":" + googleSecret)
    },
    data: JSON.stringify(data),
    dataType: 'json',
    type: 'GET',

    success: function(data) {

        console.log(data);                      

        var item = data.result.find(function(e){

            return e.name == content;

        }) || data.result[0];           
        console.log("PRINT ID: " + item.id);

        var name = item.name || content;                    
        $('#nameText').text(name);
        console.log("Name: " + name);
});

Merci beaucoup :))) x

...how could I identify if the value of a declared variable ... is the same as a value within the list of name keys in the array?

As per your provided response object you could iterate through it and check the values against your variable content:

var content = "user1";

$.each(response, function(i, v) {
   if (v.name == content) {
      console.log(v.name);
   }
});

Example Fiddle

As for the second part of your question:

but I got an error of "TypeError: data.result is undefined";

The reason you may be getting your error is because find is expecting a jQuery object, you have received a JSON object back from your endpoint, so using dot notation as above will should work as well:

success: function(data) {
    $.each(data, function(i, v) {
        if (v.name == content) {
            console.log(v.name);
        }
    });

}

You can see the answer to this question for a bunch of awesome information on how to access / proccess objects.

Also note your success callback in your code above is not closed, which will create errors.

        function getID(name){

            $.each(data,function(key,value){    //value = object.value (name)

                $.each(value,function(key1,value1){     //value1 = user name (actual names in array)

                    if(value1 == content){
                        console.log(value.id);

                        var name = value.name;                  
                        $('#nameText').text(name);
                        console.log("Name: " + name);

                        return;
                        }
                    });

                });
            }

        getID(data);
        return false;