stringify

So, I was interested to find that JSON.stringify reduces a RegExp to an empty object-literal ( fiddle ): JSON.stringify(/^[0-9]+$/) // "{}" Is this behavior expected? I realize that a RegExp is an object with no properties to serialize. That said, dates are objects too; yet JSON.stringify() manages to produce a meaningful string: JSON.stringify(new Date) // "2014-07-03T13:42:47.905Z" I would have hoped that JSON would give RegExp the same consideration by using RegExp.prototype. toString() . Yes, because there's no canonical representation for a RegExp object in JSON. Thus, it's just an empty

I have a JavaScript ES6 class that has a property set with set and accessed with get functions. It is also a constructor parameter so the class can be instantiated with said property. class MyClass { constructor(property) { this.property = property } set property(prop) { // Some validation etc. this._property = prop } get property() { return this._property } } I use _property to escape the JS gotcha of using get/set that results in an infinite loop if I set directly to property . Now I need to stringify an instance of MyClass to send it with a HTTP request. The stringified JSON is an object

I JSON.stringify a json object by result = JSON.stringify(message, my_json, 2) The 2 in the argument above is supposed to pretty print the result. It does this if i do something like alert(result) . However, I want to output this to the user by appending it inside a div. When I do this I get just a single line showing up. (I don't think it is working because the breaks and spaces are not being interpreted as html?) { "data": { "x": "1", "y": "1", "url": "http://url.com" }, "event": "start", "show": 1, "id": 50 } Is there a way to output the result of JSON.stringify to a div in a pretty print

I have JavaScript Object say: var a = {b: Infinity, c: 10}; When I do var b = JSON.stringify(a); it returns the following b = "{"b":null, "c":10}"; How is the JSON.stringify converts the object to strings? I tried MDN Solution . function censor(key, value) { if (value == Infinity) { return "Infinity"; } return value; } var b = JSON.stringify(a, censor); But in this case I have to return the string "Infinity" not Infinity . If I return Infinity it again converts Infinity to null. How do I solve this problem. Like the other answers stated, Infintity is not part of the values JSON can store as

I'm looking for a solution to serialize (and unserialize) Javascript objects to a string across browsers, including members of the object that happen to be functions. A typical object will look like this: { color: 'red', doSomething: function (arg) { alert('Do someting called with ' + arg); } } doSomething() will only contain local variables (no need to also serialize the calling context!). JSON.stringify() will ignore the 'doSomething' member because it's a function. I known the toSource() method will do what I want but it's FF specific. You can use JSON.stringify with a replacer like: JSON

JSON.stringify(eventObject); gives: TypeError: Converting circular structure to JSON dojox.json.ref.toJson(eventObject); gives: TypeError: Accessing selectionEnd on an input element that cannot have a selection. Is there some library/code ready to use to accomplish it ? fresskoma You won't be able to serialize an event object with JSON.stringify, because an event object contains references to DOM nodes, and the DOM has circular references all over the place (e.g. child/parent relationships). JSON can't handle these by default, so you're a bit out of luck there. I'd suggest to look at How to