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Find a variable in a array variable

I am trying to get load a variable from a array variable for my project but the value comes back as undefined I just used the console.log for the test output.
I want to learn how to use it after seeing others use on their projects and I want to do it to make my projects easier to manage.
I set it to trigger when the page loads up first thing.
Any help is welcome from the community.
My code if it helps solve it problem:
window.addEventListener('load',function(){
var values = [
odds_base = 10,
start_cash = 50
]
console.log(values.odds_base)
});

In this case I think you have to use an object like this one, instead of array:
window.addEventListener('load',function() {
var values = {
odds_base: 10,
start_cash: 50
};
console.log(values.odds_base);
});

You are using the wrong data structure here. Square brackets are used for arrays. You should use a javascript object here.
window.addEventListener('load',function(){
var values = {
odds_base: 10,
start_cash: 50
}
console.log(values.odds_base)
});

Or you can do like this
let values = {};
values.odds_base = 10;
values.start_cash = 50;
console.log(values.odds_base);

If that is array then you have to use variables like this
window.addEventListener('load',function(){
var values = [
odds_base = 10,
start_cash = 50
]
console.log(values);
console.log(odds_base);
console.log(start_cash);
});
When you assign array like this then Internally JavaScript first Creates the variable and then assign those variables in array
Otherwise convert that array to object and do like as follows
window.addEventListener('load',function(){
var values = {
odds_base : 10,
start_cash : 50
}
console.log(values);
console.log(values.odds_base);
console.log(values.start_cash);
});

The value of values looks like it should be an object and not an array as seen in your example i.e. values = [ a = 1, b = 2 ] should be values = { a: 1, b: 2 }
window.addEventListener('load', function(){
var values = {
odds_base: 10,
start_cash: 50
}
console.log(values.odds_base)
});
Tip: Declare the values variable outside the scope of the addEventListener callback if you wish it to be accessible outside also.

Array previous values getting overwritten in angularjs

I am trying to do the following, where foo is a function which fills the 'out' array.
But for each data centre in data centres object, pushed out array is getting overwritten by a new value.
I want to prevent this overwriting.
How to create a new array reference/ instance in a loop?
_.map(datacenters, function(datacenter){
var out = []
foo(datacenter, out);
$scope.dcSelected.push(out);
});

Put your out declaration outside:
var out = [];
_.map(datacenters, function(datacenter){
foo(datacenter, out);
$scope.dcSelected.push(out);
});

I don't fully understand what you trying to do, so I will do a general example:
var datacenters = [1,2,3,4]
var out = []
datacenters.map(function(datacenter){
datacenter2 = datacenter + 1;
out.push(datacenter2);
});
console.log(out);
[ 2, 3, 4, 5 ]
(I used map that way because I haven't imported the underscore for js)

You may try angular.copy(out) of angularJs. Hope it ll work for you
_.map(datacenters, function(datacenter){
var out = []
foo(datacenter, out);
$scope.dcSelected.push(angular.copy(out));
});

You have 2 options:
1) create a closure
2) create another array as part of your controller, that will store linkage of data center and out an array, imagine it as a key, value but in a global variable of the same controller.

AngularJS How to group/organize items in object in order to show them in the view

I have a URL with some parameters like this one:
http://localhost:9000/#/checkout/?title1=Sodadrink&quantity1=2&price1=129.95&title2=PolaryteGlasses&quantity2=1&price2=59.95#%2F
and I'm getting them with $location.search(), which returns them just fine in an Object like:
Object
price1: "129.95"
price2: "59.95"
quantity1: "2"
quantity2: "1"
title1: "Sodastream"
title2: "Polaryte – Óculos de Sol"
__proto__: Object
This is cool, but now I need to group each item like:
[item]
title : Sodastream
price : 129.95
quantity : 1
[item]
title : ---
price : ---
quantity : ---
I'm stuck in this part, I've though of counting the total items inside the object, 6, and them group them in groups of 3 by creating a new Object, but didn't work out.
Can you help me? Thanks.

Since the number of items in the URL may vary, it is best to not hardcode any number. For this, I am also assuming that every item has 3 properties - title, price and quantity.
Try this:
var numOfItems = Object.keys(input).length/3; // for example, 6 properties will mean 2 items
var output = [];
for (var i = 1; i <= numOfItems; i++) {
if (input["title"+i]) {
output.push({title: input["title"+i], price: input["price"+i],quantity: input["quantity"+i]})
}
}
The output array should contain the objects in the exact way you specified.

You will have to write a bit of javascript to do that.
Assuming that your object from above is called inputs
const MAX_ITEMS=9;
var outputs = [];
for (var i=1,i<MAX_ITEMS;i++) {
if (inputs["item"+i]) {
outputs.push({item: inputs["item"+i], price: inputs["price"+i],quantity: inputs["quantity"+i]})
}
}
Your data will be in the outputs variable

How would I go about using a multidimensional array variable in javascript

Hi there before I start I did try looking through the search about writing variables so if this has been asked and answered then I do apologise but this is baffling me ....
So here goes ..
example of what I am talking about
var i = e[ab]
var n = e[cd][ef]
var t = e[cd][gh]
I know that when I want var i I can put e.ab but how would I go about writing var n and var t

So assuming your object looks like this (based on your description, it sounds like you want to access an object which is the property of another object), and you want to access them through the indexer properties (which would be a property of a property).
var e = {
ab : "variableOne",
cd : {ef:"ef object"},
gh : {ij:"ij object"},
}
var i = e["ab"]
//if these are properties, then you need to add quotes around them
//to access a property through the indexer, you need a string.
var n = e["cd"]["ef"]
var t = e["gh"]["ij"]
console.log(i);
console.log(n);
console.log(t);
console.log("this does the same thing:")
console.log(e.ab);
console.log(e.cd.ef);
console.log(e.gh.if);
In your example the object would look like
//e is the parameter, but I show it as a variable to show
// it's relation to the object in this example.
e = {
now_playing: {artist:"Bob Seger"; track:"Turn the Page"}}
}
this is different than an array of arrays:
var arr = [
['foo','charlie'],
['yip', 'steve'],
['what', 'bob', 'jane'],
];
console.log(arr[0][0]); //foo
console.log(arr[0][1]); //charlie
console.log(arr[1][0]); //yip
console.log(arr[1][1]); //steve
console.log(arr[2][2]); //jane
https://jsfiddle.net/joo9wfxt/2/
EDIT:
Based on the JSON provided, it looks like parameter e in the function is assigned the value of the item in the array. With your code:
this line will display: "Rock you like a hurricane - Nontas Tzivenis"
$(".song_title .current_show span").html(e.title);
and this line will display: "Rascal Flatts - Life is a Highway".
$(".song_title .current_song span").html(e.np);
If it's not displaying you might want to double check your JQuery selectors. This ".song_title .current_song span" is selecting it by the classes on the element.

I think you are in need of a bit of a refresher on basic JavaScript syntax. Here's how you can assign an "empty object" to a variable, then start to assign values to it's properties:
e = {}
e.ab = {}
e.cd = {}
e.cd.ef = "data"
or you can use the associative array syntax for property access:
e = {}
e["ab"] = {}
e["cd"] = {}
e["cd"]["ef"] = "data"
You see the latter is using the object e like a two-deep associative array. Is that what you are looking to do?

JavaScript is not strongly typed. So an Array "a" could contain objects of different types inside.
var a = [ "a value", [1, 2, 3], function(){ return 5 + 2;}];
var result = a[0]; //get the first item in my array: "a value"
var resultOfIndexedProperty = a[1][0]; //Get the first item of the second item: 1
var resultOfFunc = a[2](); //store the result of the function that is the third item of my array: 7
Hope this helps a little.

JavaScript: Access object variable inside nested array

How would I access ArrayObjectVariable inside
ArrayObject[0]? I know if you don't have a [ ] around it its as simple
as ArrayObject[0].ArrayObjectVariable?
var ArrayObjectVariableValue = 'AyOhVeeVee';
var ArrayObject = []
ArrayObject[0] = [{ ArrayObjectVariable : ArrayObjectVariableValue }];
alert(ArrayObject[0]???);
I didn't realize the whole "ArrayObject[0][0].ArrayObjectVariable" thing. Thanks for the replies. I was trying it with just one ("[0]") instead of two ("[0][0]"). My second question is, what is the second "[0]" for? I just tried making multiple variables and it still used "[0][0]" ? So what's the second "[0]" controlling?
Third question? I noticed that it created a variable outside the array when I did that? When I change the value of the variable in the array, it has no effect on the one outside of it? Likewise, when I change the value of the variable outside of the array it has no effect on the one inside it. Is there a way to create the array without creating a variable outside of the array with the same name? Thanks :)
OK figured it out :) Just make the Object in the array without the "[ ]". The whole point of this was to figure out how to access nested items but I got it now. Didn't realize how to make them without the "[ ]". Example for those of you struggling like I was:
// create variables that we are going to use in Array Objects. Or make a function with the values.
var ATV1 = 'AyTeeVeeOne', ATV2 = 'AyTeeVeeTwo', ANV1 = 'AyEnVeeOne';
var ATV3 = 'AyTeeVeeThree', ATV4 = 'AyTeeVeeFour', ANV2 = 'AyEnVeeTwo';
// Make an Array
var ArrayObject;
ArrayObject = [{}];
// Insert variables into Array object(s).
ArrayObject[0] = {ArrayTestObject1 : { ArrayTestValue1:ATV1,
ArrayNestedObject1:{ ArrayNestedValue1:ANV1 },
ArrayTestValue2:ATV2
}};
ArrayObject[1] = {ArrayTestObject2 : { ArrayTestValue3:ATV3,
ArrayNestedObject2:{ ArrayNestedValue2:ANV2 },
ArrayTestValue4:ATV4
}};
// Access Array Object Variables
alert(ArrayObject[0].ArrayTestObject1.ArrayTestValue1) // Example 1
alert(ArrayObject[1].ArrayTestObject2.ArrayNestedObject2.ArrayNestedValue2) // Example 2

ArrayObject[0][0].ArrayObjectVariable
You have an array for the value of ArrayObject[0], so treat it like any other array.

use this:here you have ArrayObject as array and you are creating index as zero to the array and in that on zeroth place ArrayObjectVariable key resides.
<script>
var ArrayObjectVariableValue = 'AyOhVeeVee';
var ArrayObject = []
ArrayObject[0] = [{
ArrayObjectVariable : ArrayObjectVariableValue }];
alert(ArrayObject[0][0].ArrayObjectVariable);
</script>