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How can I parse these hashes turned string, from my Ruby on Rails API so that it's accessible as an object in Javascript?

The data is stored as an array of objects wrapped in a string that looks like this
["{\"x\"=>15, \"y\"=>7}", "{\"x\"=>14, \"y\"=>7}", "{\"x\"=>13, \"y\"=>7}", "{\"x\"=>13, \"y\"=>6}", "{\"x\"=>13, \"y\"=>5}", "{\"x\"=>13, \"y\"=>4}", "{\"x\"=>13, \"y\"=>3}", "{\"x\"=>12, \"y\"=>3}", "{\"x\"=>11, \"y\"=>3}"]
The reason it is stored that way is because when I was storing the data from a json, I had to convert what was wrapped in Action Parameters to a hash.
I took a look at How to convert a ruby hash object to JSON? and Parse JSON in JavaScript?, and my answer is not addressed.
First, the problem is that it would seem JSON does not parse anything wrapped in double quotations, nor with rocket hash notation, and so I am not able to convert to convert "{"x"=>15, "y"=>7}" to {"x"=>15, "y"=>7}.
Perhaps, I have to serialize the object, see where I get my data from here: How can I access the data for the snake object sent through JSON in my params?
Any ideas on what the right approach would be?

Following radiantshaw's lead, using either
eval("{\"x\"=>15, \"y\"=>7}")
or
JSON.parse("{\"x\"=>15, \"y\"=>7}".gsub('=>', ':'))
I got the following: {"x"=>15, "y"=>7}, which is a Ruby object. However in order to convert this to a Javascript object, I also needed to convert it to json.
So by taking it one step further, I am able to parse it into json like so:
Put require 'json' in the .rb file, and then do {"x"=>15, "y"=>7}.to_json which will result in
"{\"x\":15,\"y\":7}".

The reason you're not able to convert to JSON because hash rocket is not a proper JSON syntax. Hash rocket is purely Ruby syntax.
What that means is that you somehow managed to take a Hash and convert it to a String. So the converted string is actually Ruby code and not JSON.
You could do...
eval("{\"x\"=>15, \"y\"=>7}")
... and it will return a Ruby Hash.
Or if you don't want to use eval due to security reasons, you can do...
JSON.parse("{\"x\"=>15, \"y\"=>7}".gsub('=>', ':'))

Parse float with decimals to JSON in JavaScript also for 1 as 1.00

The situation:
My sensor measures data, that I process in a NodeRED-function and afterwards parse into a JSON-object. The NodeRED-function allows me to write JavaScript-Code. The JSON-object gets send to a receiving module, written in C++, that works on the JSON with the JSON_spirit library. I can not change the receiving module.
The problem: The receiving app tries to get one value of the JSOn with the function value.get_float(). The sensors sometimes measure an exact 1.00. That gets passed to the JSON as {"value":1}. The receiving module terminates with the Error:
terminate called after throwing an instance of 'std::runtime_error'
what(): get_value< real > called on integer Value
Obviously, the function value.get_float() seems not to be able to change an 1 into a 1.0 and, as mentioned, I can not change the used function. So, I need to find a way to parse {"value":1.00} into the JSON.
What I have tried:
I tried in my NodeRED function value.toFixed(2) but this would return a string {"value":"1.00"}.
So, I tried to parse the string as a float again like this
value.toFixed(2);
value = parseFloat(value);
But this would lead for a 1.00 again to a JSON like this: {"value":1}.
I tried some tricks with rounding as well, but as soon as JavaScript can omit unnecessary decimals, it does. So, I havent found a solution yet.
Any ideas are welcome.
P.S.: This is my first time ever StackOverflow question so please do not be too harsh on me :)
Edit: I found the following workaround.
I use value.toFixed(2); in a first note to get {"value":"1.00"}. Later on, I use a regular expression on the string in a change-Node in NodeRED.
RegEx:
"Value":\"(\d+\.\d{2})\"
Replace with:
"Value":$1
My real case was a bit more complex than the example, so the regex was a little longer. But regex101 helped a lot.

Think this post was already been there:
Force float value when using JSON.stringify
So i think in Javascript there is no difference between 1 and 1.0

Convert JSON with objects and arrays to String

I have a JSON object which looks like this:
{
files: ['test.mp4'],
name: ['testFile'],
hints: ['%YES%_%MAYBE%_%NO%']
}
And I need to convert it to a String so the output looks like this:
[{files=test, name=testFile, hints= %YES%_%MAYBE%_%NO%}]
Is this possible to achieve in Node JS? Thanks
I tried the following:
var x = {
files: ['test.mp4'],
name: ['testFile'],
hints: ['%YES%_%MAYBE%_%NO%']
}
console.log(JSON.stringify(x));
But the output looks like this:
{"files":["test.mp4"],"name":["testFile"],"hints":["%YES%_%MAYBE%_%NO%"]}
Still with the square brackets. I may not 100% know the keys and values in the object above.

Try
JSON.stringify(obj)
then you get a string with quotes etc.

JavaScript has JSON.stringify() method which can convert an object into string:
var x = {
files: ['test.mp4'],
name: ['testFile'],
hints: ['%YES%_%MAYBE%_%NO%']
}
console.log(JSON.stringify(x));
// result: '{"files":["test.mp4"],"name":["testFile"],"hints":["%YES%_%MAYBE%_%NO%"]}'
This will result in a string which can be transformed back to JS object with JSON.parse() method. If you still want to remove all brackets and quotes, you can simply use JavaScript's replace() method (replacing characters [, ], and " with empty string), but this will replace those characters in all your values (if any) and will result in (sort of) non-reusable string.

TL;DR Don't do this unless you absolutely have to (ie. you're dealing with a messed up API written by someone else that must have the data in this format)
If you want exactly the format listed in your question, then you're going to have to write your own stringify function that recursively walks through the object you pass to it and applies whatever rules you want to use. You will have to consider all the possible permutations of your object and spell out those rules.
For example, you've converted arrays with single elements in the initial object into strings - what happens if there is more than one element in the array? Should it be delimited by a comma or some other character? Should we just throw away elements after the first?
And once you've written the stringify function, you'll also have to write the corresponding parse function to reverse it. And it should be mentioned that in your example, you're throwing away information (eg. the file extension on the .mp4 file) - how are you going to handle that?
A much, much better way to approach this would be to do what other people have suggested here: use JSON.stringify and rewrite your code to use standard JSON objects. Why? Because the format is well documented and well understood and because the functions to convert are well tested. You will save yourself a whole lot of time and pain if you don't try to reinvent the wheel here.

Return Subscript in JSON

I am trying to return a JSON object via AJAX using jQuery, that may contain elements that need HTML Tags. It is not great practice to include HTML tags within a JSON response and even so, it will be encoded at the other end so may cause more problems.
Consider this result:
{
"Country_Code":"EL",
"Country_Name":"Greece",
"Total_Value":5,
"Formatted_Value":"5m3"
}
The 'Formatted_Value' needs to look like this: 5m3. My question is simply, what would be the best way to achieve this with a returned JSON object?
If HTML is the best way then I will implement this, but only as a last resort as returning markup in a JSON request is not very good.

you could change the Json in this way:
"Formatted_Value":"5m³"
Using ³ (³) entity: http://code.google.com/p/doctype-mirror/wiki/Sup3CharacterEntity

JavaScript array to ColdFusion

I have an array I've created in JavaScript. The end result comes out to element1,element2,,,element5,element6,,,element9.... etc
Once passed to ColdFusion, it removes the null elements, I end up with element1,element2,element5,element6,element9
I need to maintain these spaces, any ideas? My problem may begin before this, to explain in more detail...
I have a form with 13 elements that are acting as a search/filter type function. I want to "post" with AJAX, in essence, i'm using a button to call a jQuery function and want to pass the fields to a ColdFusion page, then have the results passed back. The JavaScript array may not even be my best option.
Any ideas?

Are you deserializing the jS array into a list? CF ignores empty list fields using its built-in functions. This can be worked around by processing the text directly. Someone has already done this for you, fortunately. There are several functions at cflib.org, like:
ListFix
ListLenIncNulls
etc, etc, etc.

In exchanging data between javascript and coldfusion have a look at using JSON.
http://www.json.org
http://www.epiphantastic.com/cfjson/

Instead of using the CF ListToArray function, use the Java String methods to split the string into an array. This will maintain the empty list items.
<cfset jsList = "item1,item2,,item4,item5,,item6">
<cfset jsArray = jsList.split(",")>
<cfdump var="#jsArray#">

you are using array in JavaScript,Fine. instead of assigning by default empty value,assign some dummy value. whenever you use this array value ignore dummy value using condition.