检索变量值而不是此变量的名称

Question

I'm trying to add a value to a json structure like :

saveChamp.test = {"type":"","text":""};

It's ok, but i want "test" like : var test = $('blablabla').val();

In my example, it does not fetch the value of test but it creates an entry with the name test. This is not what I want.

Help ?

Edit :

var saveChamp = new Object();
var test = "Field1";
saveChamp.test = {"type":"ok","text":"kok"};

I want that script create an entry in saveChamp with the name Field1 (value of ma variable test).

Answer 1

Ahh, in this case, after your edit it's obvious what you need.

every object in javascript can be treated as an associative array, and it is possible to call properties of an array by a variable's value..

var saveChamp = new Object();
var test = "Field1";
saveChamp[test] = {"type":"ok","text":"kok"};

this is the same as:

saveChamp["Field1"] = {"type":"ok","text":"kok"};

this will do what you want, as the name of the field is passed as a variable string.

Answer 2

Not sure i understand you fully, as this code doesn't make much sense.

JSON means Javascript Object Notation .

It is used to transfer variables through plain text. you do not need this, as you can transfer you data via code.

ex. 1:

saveChamp.test = $('blablabla')).val();

will make the object saveChamp, have a property test, which has a value: $('blablabla')).val();

ex. 2:

saveChamp.test = {"type":"blablabla","text":$('blablabla')).val()};

will hopefully create an object, out of saveChamp's test property. this actually means this:

saveChamp.test.type = "blabalbla"; 
saveChamp.test.text = $('blablabla')).val();

EDIT

i made a new answer, but leaving this one here, as they are both very different, and both useful.

Answer 3

Try using the bracket notation:

var test = $('blablabla').val();
saveChamp[test] = {
    "type": "",
    "text": ""
};

Answer 4

I see how you are trying to set your value and set is to a JSON object but if that is the exact code you are using it is missing the "#" to grab the element by Id and there is an extra paren;

Trey using:

var test = $('#blablabla').val(); 

saveChamp.test = {"type": "blablabla","text": test};