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一文了解大数据领域创业的机会与方向 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...正知道怎么做。每个人都以为除了自己之外的每个人都在使用它，所以每个人都装作自己很了解它。”
TED的创始人Dan Ariely是这样调侃大数据的。虽然是句玩笑话，但也确实说出了大数据的行业现状。
现状一、市场尚未饱和，...
'System.Net.Http.HttpContent' does not contain a definition for 'ReadAsAsync' and no extension metho
...Net.Http.Formatting.dll appears to reference version 4.5.0.0 of Newtonsoft.Json.DLL, whereas the latest version is 6.0.0.0. That means you'll need to also add a binding redirect to avoid a .NET Assembly exception if you reference the latest Newtonsoft NuGet package or DLL:
<dependentAssembly>...
Why / when would it be appropriate to override ToString?
...ely, such strategies are very common:
ISerializable (C#)
Pickle (Python)
JSON (Javascript or any language that implements it)
SOAP
etc...
Note: Unless you're using PHP because, herp-derp, there's a function for that ::snicker::
Reason 2 - ToString() is not enough:
I have yet to see a language ...
Rest with Express.js nested router
...ss').Router();
// api/products
router.get('/', function(req, res) {
res.json({ products: [] });
});
// api/products/:id
router.get('/:id', function(req, res) {
res.json({ id: req.params.id });
});
module.exports = router;
Nesting example in folder structure
I noticed some comments on "nest...
CSRF Token necessary when using Stateless(= Sessionless) Authentication?
... protect against cross site requests"
http://angular-tips.com/blog/2014/05/json-web-tokens-introduction/
"If we go down the cookies way, you really need to do CSRF to avoid cross site requests. That is something we can forget when using JWT as you will see."
(JWT = Json Web Token, a Token based aut...
mongodb group values by multiple fields
...nst uri = 'mongodb://localhost:27017';
const log = data => console.log(JSON.stringify(data, undefined, 2));
(async function() {
try {
const client = await MongoClient.connect(uri);
const db = client.db('bookDemo');
const books = db.collection('books');
let { version } = awa...
NSURLRequest setting the HTTP header
...RL:url)
request.HTTPMethod = "POST"
var err: NSError?
request.HTTPBody = NSJSONSerialization.dataWithJSONObject(params, options: nil, error: &err)
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
...
What is the max size of localStorage values?
...ues, and in order to do that the objects need to be stringified (stored as JSON-string) before they can be stored, is there a defined limitation regarding the length of the values.
...
How do I set up HttpContent for my HttpClient PostAsync second parameter?
...
A quick answer to "how do i post a JSON reprsentation of my class" is "serialize the object to JSON, probably with JSON.Net", but that really belongs in a separate question.
– Preston Guillot
Sep 24 '13 at 23:05
...
How to call a Python function from Node.js
... const script = pythonDir + scriptName;
const pyArgs = [script, JSON.stringify(args) ]
const pyprog = spawn(python, pyArgs );
let result = "";
let resultError = "";
pyprog.stdout.on('data', function(data) {
result += data.toString();
});...