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JS - parsing data with random single quotes

How do I parse an array of objects if it contains single quote characters?
For example, I have:
$example = '{"response":[{"uid":3202935,"first_name":"Martha","last_name":"O'Nill","user_id":3202935},{"uid":4070530,"first_name":"Alex","last_name":"White","user_id":4070530}]}';
The single quotes seem to break up the array, making parsing impossible.

You can use backticks (``). It will generate the string as it was written, with double "" and single ' quotes.
var str = `{"response":[{"uid":3202935,"first_name":"Martha","last_name":"O'Nill","user_id":3202935},{"uid":4070530,"first_name":"Alex","last_name":"White","user_id":4070530}]}`;
console.log(str);
var obj = JSON.parse(str);
console.log(obj.response[0].uid);

It's a json string not an object.
Use JSON.parse(myJsonSting) and you will get objects with the ' taken care of.

Javascript is supposed to ignore single quotes if it is inside double quotes, in your case try adding backslash before the single quote.

To parse at json string to object
var example = '{"response":[{"uid":3202935,"first_name":"Martha","last_name":"O'Nill","user_id":3202935},{"uid":4070530,"first_name":"Alex","last_name":"White","user_id":4070530}]}';
var objExample = JSON.parse(example);
To convert json object to json string
var StrExample = JSON.stringify(objExample);

How to make string campatible for JSON.parse()

In my application when I enter value as my"name in text field the framework makes a String like (this i can not control):
"[{\"id\":\"201500000001002\",\"name\":\"my\"name\",\"colorCode\":\"\",\"version\":\"11\",\"nodeOrder\":\"1\"}]"
Now this String is passed to JSON.parse() method which produces an error because of ambiguous name field as
\"name\":\"my\"name\"
var str = JSON.parse("[{\"id\":\"201500000001002\",\"name\":\"my\"name\",\"colorCode\":\"\",\"version\":\"11\",\"nodeOrder\":\"1\"}]")
This results in JSON exception
Is there anything I can do with the string:
"[{\"id\":\"201500000001002\",\"name\":\"my\"name\",\"colorCode\":\"\",\"version\":\"11\",\"nodeOrder\":\"1\"}]"
To escape double quote character in my " name as my \" name to make it valid for JSON.parse method.
I can not control JSON String, I am just passing name as my"name and framework creates a String which is passed to JSON.parse()

I went through a series of text replace. You can try this:
var str = "[{\"id\":\"201500000001002\",\"name\":\"my\"name\",\"colorCode\":\"\",\"version\":\"11\",\"nodeOrder\":\"1\"}]";
JSON.parse(
str.replace(/\\/i,"").
replace(/{"/g,"{'").
replace(/":"/g,"':'").
replace(/","/g,"','").
replace(/"}/g,"'}").
replace(/'/g,"\###").
replace(/"/g,"\\\"").
replace(/###/g,"\"")
);
It will give back your desired JSON array

var str = "[{\"id\":\"201500000001002\"}]";
str.replace("\"*","\\\"");
var obj = JSON.parse(str);

How would I serialize XML in a JSON string?

How would I serialize XML into a valid value in a JSON string?
Let's say I have this XML:
<root>
<item label="hello's there" />
</root>
And I want to pass it with a JSON object / string like so:
var myJSON = "{'name':'dork','value':" + xml + "'}";

Instead of using a string create an object and pass it to the JSON.stringify method like so:
var object = {};
object.name = "dork";
object.xml = myXML;
var result = JSON.stringify(object);

You can use the JSON.stringify method to turn the string into a string literal in JSON format:
var myJSON = '{"name":"dork","value":' + JSON.stringify(xml) + '}';
Note that the quotation marks around the string is added by the stringify method.
Note also that the JSON syntax requires quotation marks (") around identifiers and strings, apostrophes (') are not valid.

Why is stringified JSON a valid string?

We're already aware that we cannot add double quotes inside the double quotes:
var str = ""hello""; //this will be invalid string
but when I stringify an object like this
var obj = {"name":"abc"}
var str = JSON.stringify(obj).
str // returns "{"name":"abc"}"
which is valid but shouldn't be. I'm confused as in do JavaScript have some special cases when we stringify a JSON object and omit the string validations on it?
Thanks in advance.

You can have as many double quotes inside a string literal as you want. You just need to scape them using a backslash prefix (\" instead of ").
Try this example in your browser console:
var myStr = "\"Hello\"";
myStr
You should see ""Hello"" in your console. That would be how the stringify creates a string with double quotes in it.

getting json from string

I have the following json object
"phrase": "{subject: Hello}"
When I access "phrase" it returns "{subject: Hello}" as a string but I want this string to be converted to json object.

There is a function called JSON.parse to convert things from strings to objects but I am not sure it would apply to your case, since you have invalid JSON (the "Hello" not being quoted is a bid deal and the "subject" not being quoted is a bad sign)

If it's a Javascript object literal, just remove the quotation marks when you create it:
var phrase = { subject: "Hello" };
If it's a JSON string that is parsed, change the string to an object:
{ "phrase": { "subject": "Hello" } }
If you have a variable that contains a JSON string, you need to make it valid JSON to parse it:
var phrase = '{ "subject": "Hello" }';
var obj = JSON.parse(phrase);
You can also parse the string as Javascript, which has a more relaxed syntax. The string value needs delimiters though:
var phrase = '{ subject: "Hello" }';
var obj = eval(phrase);
Note that the eval function actually executes the string as javascript, so you need to know where the string value comes from for this to be safe.

Use JSON.parse():
var obj = {myObj:"{\"this\":\"that\"}"};
obj.myObj = JSON.parse(obj.myObj);
alert(obj.myObj["this"]);
Here is the demo.

you could use native JSON parsing with JSON.parse(jsonString);
(Edit: assuming to have a valid JSON object)