Get element of JS object with an index
JavascriptObjectJavascript Problem Overview
Ok so let's say that I have my object
myobj = {"A":["Abe"], "B":["Bob"]}
and I want to get the first element out of it. As in I want it to return Abe which has an index of A. How can I do something along the lines of myobj[0] and get out "Abe".
Javascript Solutions
Solution 1 - Javascript
I know it's a late answer, but I think this is what OP asked for.
myobj[Object.keys(myobj)[0]];
Solution 2 - Javascript
JS objects have no defined order, they are (by definition) an unsorted set of key-value pairs.
If by "first" you mean "first in lexicographical order", you can however use:
var sortedKeys = Object.keys(myobj).sort();
and then use:
var first = myobj[sortedKeys[0]];
Solution 3 - Javascript
myobj = {"A":["Abe"], "B":["Bob"]}
Object.keys(myobj)[0]; //return the key name at index 0
Object.values(myobj)[0] //return the key values at index 0
Solution 4 - Javascript
var myobj = {"A":["Abe"], "B":["Bob"]};
var keysArray = Object.keys(myobj);
var valuesArray = Object.keys(myobj).map(function(k) {
return String(myobj[k]);
});
var mydata = valuesArray[keysArray.indexOf("A")]; // Abe
Solution 5 - Javascript
myobj.A
------- or ----------
myobj['A']
will get you 'B'
Solution 6 - Javascript
$.each(myobj, function(index, value) {
console.log(myobj[index]);
});
Solution 7 - Javascript
If you want a specific order, then you must use an array, not an object. Objects do not have a defined order.
For example, using an array, you could do this:
var myobj = [{"A":["B"]}, {"B": ["C"]}];
var firstItem = myobj[0];
Then, you can use myobj[0] to get the first object in the array.
Or, depending upon what you're trying to do:
var myobj = [{key: "A", val:["B"]}, {key: "B", val:["C"]}];
var firstKey = myobj[0].key; // "A"
var firstValue = myobj[0].val; // "["B"]