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File input 'accept' attribute - is it useful?
...plication/x-stuffit sit
application/x-sv4cpio sv4cpio
application/x-sv4crc sv4crc
application/x-tar tar
application/x-tcl tcl
application/x-tex tex
application/x-texinfo texi
application/x-texinfo texinfo
application/x-troff roff
application/x-troff t
application/x-troff tr
applicat...
Using .NET, how can you find the mime type of a file based on the file signature not the extension
...cation/x-wais-source"},
{"sv4cpio", "application/x-sv4cpio"},
{"sv4crc", "application/x-sv4crc"},
{"svg", "image/svg+xml"},
{"swf", "application/x-shockwave-flash"},
{"t", "application/x-troff"},
{"tar", "application/x-tar"},
{"tcl", "application/x-tcl"},
{"tex", "app...
NSIS做的安装程序，可接受命令行参数，实现静默安装，静默卸载 - 更多技术 ...
...bit more control over the installation process.
3.2.1 Common Options
/NCRC disables the CRC check, unless CRCCheck force was used in the script.
/S runs the installer or uninstaller silently. See section 4.12 for more information.
/D sets the default installation directory ($INSTDIR), overridi...
NSIS做的安装程序，可接受命令行参数，实现静默安装，静默卸载 - 脚本技术 ...
...ser a bit more control over the installation process.3.2.1 Common Options/NCRC disables the CRC check, unless CRCCheck force was used in the script./S runs the installer or uninstaller silently. See section 4.12 for more information./D sets the default installation directory ($INSTDIR), overriding I...
Get MIME type from filename extension
...ms-pki.stl"},
{".sv4cpio", "application/x-sv4cpio"},
{".sv4crc", "application/x-sv4crc"},
{".svc", "application/xml"},
{".swf", "application/x-shockwave-flash"},
{".t", "application/x-troff"},
{".tar", "application/x-tar"},
{".tcl", "applicatio...
Saving a Numpy array as an image
... chunk_head +
struct.pack("!I", 0xFFFFFFFF & zlib.crc32(chunk_head)))
return b''.join([
b'\x89PNG\r\n\x1a\n',
png_pack(b'IHDR', struct.pack("!2I5B", width, height, 8, 6, 0, 0, 0)),
png_pack(b'IDAT', zlib.compress(raw_data, 9)),
png_pack(b...
How to convert a string of bytes into an int?
... @eri I resurrected a timeit script i used to evaluate a couple of CRC methods. Four runs 1) struct 2) int.from_bytes 3) as #1 but cython compiled, 4) as #2 but cython compiled. 330ns for struct, 1.14us for int (cython gave maybe 20ns speedup in both...) looks like I am switching back :) thi...
Java associative-array
...t;String,String>>();
myMap1.put("URL", "Val0");
myMap1.put("CRC", "Vla1");
myMap1.put("SIZE", "Vla2");
myMap1.put("PROGRESS", "Vla2");
myMap.add(0,myMap1);
myMap.add(1,myMap1);
for (Map<String, String> map : myMap) {
System.out.println(map.get("URL"...
Check for changes to an SQL Server table?
... changes.
It is only a primitive checksum and no cyclic redundancy check (CRC) calculation.
Therefore you can't use it to detect all changes, e. g. symmetrical changes result in the same CHECKSUM!
E. g. the solution with CHECKSUM_AGG(BINARY_CHECKSUM(*)) will always deliver 0 for all 3 tables with...
Consistency of hashCode() on a Java string
...
Something different, because you seem to need a number: How about using CRC32 or MD5 instead of hashcode and you are good to go - no discussions and no worries at all...
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