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Meaning of Open hashing and Closed hashing
...instead once an object is hashed, it is stored in a list which is separate from the hash table's internal array. "open" refers to the freedom we get by leaving the hash table, and using a separate list. By the way, "separate list" hints at why open hashing is also known as "separate chaining".
In s...
Prevent wrapping of span or div
...
Actually, I tried this seperate from my full presentation and it seemed to work relatively well (at least in firefox 3, IE 7, Chrome and Opera, which is pretty much all I care about)
– cgp
Mar 25 '09 at 3:13
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PHP - iterate on string characters
...f your strings are in Unicode you should use preg_split with /u modifier
From comments in php documentation:
function mb_str_split( $string ) {
# Split at all position not after the start: ^
# and not before the end: $
return preg_split('/(?<!^)(?!$)/u', $string );
}
...
Clear the cache in JavaScript
...ed items and retrieve new copies of the page, css, images, JavaScript, etc from the server. This doesn't clear the whole cache, but has the effect of clearing the cache for the page you are on.
However, your best strategy is to version the path or filename as mentioned in various other answers. I...
Error in SQL script: Only one statement is allowed per batch
...e problem. When I added the file in VS I forgot to set Build Action = None from the file properties. So changing that fixed the problem and the project now compiles.
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What exactly does the Access-Control-Allow-Credentials header do?
... CORS does not include cookies on cross-origin requests. This is different from other cross-origin techniques such as JSON-P. JSON-P always includes cookies with the request, and this behavior can lead to a class of vulnerabilities called cross-site request forgery, or CSRF.
In order to reduce the ...
Convert hyphens to camel case (camelCase)
...ere's a link to live tests: http://jsfiddle.net/avKzf/2/
Here are results from tests:
input: "ab-cd-ef", result: "abCdEf"
input: "ab-cd-ef-", result: "abCdEf"
input: "ab-cd-ef--", result: "abCdEf"
input: "ab-cd--ef--", result: "abCdEf"
input: "--ab-cd--ef--", result: "AbCdEf"
input: "--ab-cd-__-e...
Drag and drop files into WPF
...otcha is that if you run VisualStudio as Admin - debug your app - and drag from FileExplorer as non admin the security context is different and no drag events will trigger. Costed me 30 minutes of life.
– Hans Karlsen
Mar 11 at 14:25
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What are Runtime.getRuntime().totalMemory() and freeMemory()?
...he maximum memory. If you run with -Xms1024m -Xmx1024m, the value you get from totalMemory() and maxMemory() will be equal.
Also, if you want to accurately calculate the amount of used memory, you do so with the following calculation :
final long usedMem = totalMemory() - freeMemory();
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How do I search for an object by its ObjectId in the mongo console?
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import { ObjectId } from "mongodb"; works for fancier JS.
– NetOperator Wibby
Dec 3 '18 at 5:09
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