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What does -> mean in Python function definitions?
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And the information is available as a .__annotations__ attribute.
– Martijn Pieters♦
Jan 17 '13 at 13:06
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Is it possible to ping a server from Javascript?
...ther parts of the source but you get the idea).
function Pinger_ping(ip, callback) {
if(!this.inUse) {
this.inUse = true;
this.callback = callback
this.ip = ip;
var _that = this;
this.img = new Image();
this.img.onload = function() {_that.good();};
this.img.onerro...
How to start a Process as administrator mode in C# [duplicate]
...ne char at a time from somewhere (i.e. a keyboard, or an encrypted source, etc.). -- If you have an actual string that contains the data anyway, then it's not secure.
– BrainSlugs83
Jun 26 '17 at 23:28
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Rename specific column(s) in pandas
I've got a dataframe called data . How would I rename the only one column header? For example gdp to log(gdp) ?
5 Answe...
Why does ++[[]][+[]]+[+[]] return the string “10”?
...array ([]). Due to references it's wrong to say [[]][0] === [], but let's call the inner array A to avoid the wrong notation.
++ before its operand means “increment by one and return the incremented result”. So ++[[]][0] is equivalent to Number(A) + 1 (or +A + 1).
Again, we can simplify the me...
Why should weights of Neural Networks be initialized to random numbers? [closed]
...ther algorithms, which are not able to find a global optimum (k-means, EM, etc.) and does not apply to the global optimization techniques (like SMO algorithm for SVM).
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Convert a Unicode string to a string in Python (containing extra symbols)
...ow do you convert a Unicode string (containing extra characters like £ $, etc.) into a Python string?
9 Answers
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Does every web request send the browser cookies?
...ookie (and all of the other restrictions -- secure, httponly, not expired, etc) hold, then the cookie will be sent for every request.
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C# How can I check if a URL exists/is valid?
...dynamic service like stock price. For static resources (e.g. images, files etc) HEAD usually works as advertised since it is baked into the server. Many programmers do not explicitly HEAD requests since the focus is normally on POST and GET. YMMV
– David Taylor
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What is the recommended approach towards multi-tenant databases in MongoDB?
... most of the NoSQL dbs I researched (CoachDB, Cassandra, CouchBase Server, etc.) due to the specifics of the database design.
Collections (or buckets or however they call it in different DBs) are not the same thing as security schemas in RDBMS despite they behave as container for documents they ar...