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JSon/Jquery request with a setTimeout always returns a "null" result? (for Twitter Search API)

- by supermogx

I make a call to the twitter API. 100 posts are retreived + a properties that tells me what the next page to call is. So I wait 5 sec. and call that next page, but the JSon results in the callback function is always null the second time... I think it's probably a JQuery problem... Here's a complete sample HTML code : <html> <head>…

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What's faster to parse lots of data (5Mb): eval or json?

- by AlfaTeK

I want to get, via ajax, a collection of data objects and parse them into JS data. Currently I have 2 choices: - Server returns valid javascript code and then I eval it. - Server returns JSON object and then I eval the json object What is the fastest of these in Firefox? (I only care about the "parsing" performance, not server or data…

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How does JSON compare to XML in terms of file size and serialisation/deserialisation time?

- by nbolton

I have an application that performs a little slow over the internet due to bandwidth reasons. I have enabled GZip which has improved download time by a significant amout, but I was also considering whether or not I could switch from XML to JSON in order to squeeze out that last bit of performance. Would using JSON make the message size…

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how to write the server side in php if i am using the json on client side of the iphone.

- by uttam

i want to make my server side in php. after writing the code in php can i directly use json to parse it of or something other required on the server side with php. can you give me some example of it, how to do this on server side if i want to use json of my client side.

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Jquery datepicker that consumes json data which are future dates...

- by Pandiya Chendur

Is there any jquery datepicker that consumes json data... My json data would be a list of future dates that belongs to any month should be consumed by my datepicker which should be disabled and highlighted with a color....

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Is there a memory efficient and fast way to load big json files in python?

- by user210481

I have some json files with 500MB. If I use the "trivial" json.load to load its content all at once, it will consume a lot of memory. Is there a way to read partially the file? If it was a text, line delimited file, I would be able to iterate over the lines. I am looking for analogy to it. Any suggestions? Thanks

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Is there a way to output the properties/values of a json object?

- by Blankman

Is there a way to output the properties/values of a json object? I make a jsonp call, and I want to see what the json object looks like. Also want to learn how to iterate through the property and values.

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How do I do this in my Django URLs? (.json, .xml)

- by alex

Suppose this is my URL route: (r'^test/?$','hello.life.views.test'), How do I make it so that people can do .json, .xml, and it would pass a variable to my views.test, so that I know to make json or xml?

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json to std::string in c++ from an URL.

- by rkbang

Hello all, I want to implement something where I will get an URL which will be a link to JSON db, now I need to get the json from this URL and convert it to std:string in a c++ file. Is there any easy way to do this.

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Fast JSON serialization (and comparison with Pickle) for cluster computing in Python?

- by user248237

I have a set of data points, each described by a dictionary. The processing of each data point is independent and I submit each one as a separate job to a cluster. Each data point has a unique name, and my cluster submission wrapper simply calls a script that takes a data point's name and a file describing all the data points. That…

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How is it that json serialization is so much faster than yaml serialization in python?

- by guidoism

I have code that relies heavily on yaml for cross-language serialization and while working on speeding some stuff up I noticed that yaml was insanely slow compared to other serialization methods (e.g., pickle, json). So what really blows my mind is that json is so much faster that yaml when the output is nearly identical. …

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Rotate a feature Image in Open Layers - Javascript variable from JSON.

- by Ozaki

I have an open layers map. It adds and removes my "imageFeature" every 10secs or so. I have a JSON feed that gives me the rotation that I need, I have a request to get that rotation and set it as a variable of rotationv. Everything works but the fact when the image is recreated it does not update the rotation. My code is…

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Twitter API Rate Limit - Overcoming on an unauthenticated JSON Get with Objective C?

- by Cian

I see the rate limit is 150/hr per IP. This'd be fine, but my application is on a mobile phone network (with shared IP addresses). I'd like to query twitter trends, e.g. GET /trends/1/json. This doesn't require authorization, however what if the user first authorized with my application using OAuth, then hit the JSON API?…

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Proper status codes for JSON responses to Ajax calls?

- by anonymous coward

My project is returning JSON to Ajax calls from the browser. I'm wondering what the proper status code is for sending back with responses to invalid (but successfully handled) data submissions. For example, jQuery has the following two particular callbacks when making Ajax requests: success: Fired when a 200/2xx status…

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Is using advanced constructs (function, new, function calls) in JSON safe?

- by Vilx-

JSON is a nice way to pass complex data from my server side code to client side JavaScript. For example, in PHP I can write: <script type="text/javascript> var MyComplexVariable = <?= BigFancyObjectGraph.GetJSON() ?>; DoMagic(MyComplexVariable); </script> This is pretty cool, but sometimes you…

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How to populate a dropdownlist with json data in jquery?

- by Pandiya Chendur

I am developing a country state cascading dropdown list... I returned json result based on countryId but i dont know how to populate/fill it in a new dropdown listbox... Here is what i am using, function getstate(countryId) { $.ajax({ type: "POST", url: "Reg_Form.aspx/Getstates", data:…

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Error data: line 2 column 1 when using pycurl with gzip stream

- by Sagar Hatekar

Thanks for reading. Background: I am trying to read a streaming API feed that returns data in JSON format, and then storing this data to a pymongo collection. The streaming API requires a "Accept-Encoding" : "Gzip" header. What's happening: Code fails on json.loads and outputs - Extra data: line 2 column 1 -…

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Encode divx into iPhone-compatible MPEG4 while downloading?

- by Jonathan

Is there a way to encode a DivX file into an iPhone-compatible video file while the DivX is downloading/streaming? Further, is it possible to re-stream the resulting iPhone-compatible video to the iPhone with a minimal (say, 2 minute or so) delay? I've seen other questions about encoding iPhone-compatible…

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Encode H.264 stream in Internet Explorer

- by NK

I want to encode H.264 stream into IE. For that which file format/container i have to use? Please guide me. Thanks NK

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Url encode and routing?

- by Curtis White

I'm using custom routing in a web forms context. I have some titles (part of my custom route) that have say a question mark character. When I URL encode this text ("Question?") and then pass into my route, I get an HTTP ERROR CODE 400. Apparently, the URL encoded text is somehow confusing the routing…

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Deserializing MS Ajax ClientScript JSON in managed code

Stuff {"d":{"__type": ... JSON response into CLR types without breaking a sweat.

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JavaScript JSON Error While Tabbing in ASP.NET MVC

- by MightyZot

Originally posted on: http://geekswithblogs.net/MightyZot/archive/2013/11/11/javascript-json-error-while-tabbing-in-asp.net-mvc.aspxI sometimes don’t care about validation for a specific control. The RememberMe control in the login form, for example, really doesn’t need validation, so I forget to…

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Serialize Any .NET Object to a JSON String

With JSON's popularity increasing by leaps and bounds, you'll find this technique useful.

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Parsing stdout with custom format or standard format?

- by linquize

To integrate with other executables, a executable may launch another executable and capture its output from stdout. But most programs writes the output message to stdout in custom format and usually in human readable format. So it requires the system integrator to write a function to parse the…

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RIA Services - exposing JSON endpoint

This article speaks about exposing JSON endpoint which can be consumed by AJAX client.

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