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Hashing a string with Sha256
I try to hash a string using SHA256, I'm using the following code:
7 Answers
7
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What's the difference between an inverted index and a plain old index?
In software engineering we create indexes all the time (e.g., in databases) but I also hear a lot of people talk about inverted indices. Is there something fundamentally different between the two? They sound like the same thing.
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Dictionaries and default values
... far. In general, it's unlikely to matter in real life - if you need to do time-critical number crunching, Python probably is not the language of choice...
– Tim Pietzcker
Oct 27 '14 at 7:42
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Restart node upon changing a file
...ses)? I thought that the server will be loading the files from disk at the time of request, process it and then send the response. I am new to server-side programming.
– darKnight
Dec 5 '16 at 4:49
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Setting table column width
I've got a simple table that is used for an inbox as follows:
13 Answers
13
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JavaScript: empty array, [ ] evaluates to true in conditional structures. Why is this?
I was encountering a lot of bugs in my code because I expected this expression:
2 Answers
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Best way to list files in Java, sorted by Date Modified?
...the last-modified date of each file is fetched only once rather than every time the sort algorithm compares two files. This potentially reduces the number of I/O calls from O(n log n) to O(n).
It's more code, though, so this should only be used if you're mainly concerned with speed and it is measur...
Why is std::map implemented as a red-black tree?
... you make it sound like red-black trees can do tree modifications in O(1) time, which is not true. tree modifications are O(log n) for both red-black and AVL trees. that makes it moot whether the balancing part of the tree modification is O(1) or O(log n) because the main operation is already O(l...
Returning http status code from Web Api controller
...ic HttpResponseMessage GetUser(HttpRequestMessage request, int userId, DateTime lastModifiedAtClient)
{
var user = new DataEntities().Users.First(p => p.Id == userId);
if (user.LastModified <= lastModifiedAtClient)
{
return new HttpResponseMessage(HttpStatusCode.NotModifie...
Html.Partial vs Html.RenderPartial & Html.Action vs Html.RenderAction
...o, Html.Partial is rendered inline and is less resource intensive but more time consuming. Html.RenderPartial is rendered separately and therefore faster, but is more resource intensive. If you have high volume burst traffic favour Html.Partial to reduce resource usage. If you have infrequent cha...