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Calling clojure from java
...h a clear explanation of how to call Clojure from Java assuming you have already built a jar from the Clojure project and included it in the classpath?
...
Calculate MD5 checksum for a file
I'm using iTextSharp to read the text from a PDF file. However, there are times I cannot extract text, because the PDF file is only containing images. I download the same PDF files everyday, and I want to see if the PDF has been modified. If the text and modification date cannot be obtained, is a ...
Accessing JPEG EXIF rotation data in JavaScript on the client side
...hat extracts the orientation tag as fast as possible (It uses DataView and readAsArrayBuffer which are available in IE10+, but you can write your own data reader for older browsers):
function getOrientation(file, callback) {
var reader = new FileReader();
reader.onload = function(e) {...
Long-held, incorrect programming assumptions [closed]
...new language, computational complexity, lambda expressions, you name it).
Reading blogs, Stack Overflow and programming books always seemed to make me feel that I was behind the curve on the things that all programmers must just know intuitively.
I've realized over time that I'm effectively compa...
When should I use semicolons in SQL Server?
...
@maurocam I think you've read the document incorrectly. If you look at that link it says "Not ending Transact-SQL statements with a semicolon." is deprecated.
– Caltor
Nov 6 '17 at 15:10
...
Initialize a byte array to a certain value, other than the default null? [duplicate]
...x20, 0x20 };
For larger arrays use a standard for loop. This is the most readable and efficient way to do it:
var sevenThousandItems = new byte[7000];
for (int i = 0; i < sevenThousandItems.Length; i++)
{
sevenThousandItems[i] = 0x20;
}
Of course, if you need to do this a lot then you co...
Generating an Excel file in ASP.NET [closed]
...blem nowadays)
Complicated unless you're using a third party component
SpreadSheetML (open format XML)
Pros:
Simple compared to native Excel formats
Supports most Excel features: formating, styles, formulas, multiple sheets per workbook
Excel does not need to be installed to use it
No third pa...
How to split() a delimited string to a List
...
This will read a csv file and it includes a csv line splitter that handles double quotes and it can read even if excel has it open.
public List<Dictionary<string, string>> LoadCsvAsDictionary(string path)
{
...
Copy a file in a sane, safe and efficient way
...ry);
dst << src.rdbuf();
}
This is so simple and intuitive to read it is worth the extra cost. If we were doing it a lot, better to fall back on OS calls to the file system. I am sure boost has a copy file method in its filesystem class.
There is a C method for interacting with the fi...
Get domain name from given url
...e a complex grammar. If you try to roll your own parser without carefully reading RFC 3986, you will probably get it wrong. Just use the one that's built into the core libraries.
If you really need to deal with messy inputs that java.net.URI rejects, see RFC 3986 Appendix B:
Appendix B. Pars...