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How to check whether a script is running under Node.js?
....name may also become io.js (see the process-doc). To proper detect a Node-ready environment i guess you should check as follows:
Identify Node (>= 3.0.0) or io.js
(typeof process !== 'undefined') &&
(process.release.name.search(/node|io.js/) !== -1)
This statement was tested with Nod...
How to save a BufferedImage as a File
...itrary ImageWriter that supports the given format to a File. If there is already a File present, its contents are discarded.
Parameters:
im - a RenderedImage to be written.
formatName - a String containg the informal name of the format.
output - a File to be written to.
Returns:
false if no appropri...
Correct way to try/except using Python requests module?
...
Future comment readers: this was fixed in Requests 2.9 (which bundles urllib3 1.13)
– RazerM
Jul 19 '16 at 8:08
18
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Mozilla PDF.js：PDF在线预览 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...因不详。
如果在viewer解析和渲染的过程中尝试用adobe reader之类的工具打开那个pdf文件，系统会出现第二个iexplore.exe *32的进程，有时是AcroRd32.exe *32进程，两个进程加一起几乎耗去了100%的CPU资源，此时机器已经显得比较卡了。...
Timeout on a function call
...tercept from the regular Python code.
This module doesn't play well with threads (but then, who does?)
Note that since we raise an exception when timeout happens, it may end up caught and ignored inside the function, for example of one such function:
def loop_forever():
while 1:
print('s...
What is the difference between a regular string and a verbatim string?
...d be
string myFileName = @"C:\myfolder\myfile.txt";
The @ symbol means to read that string literally, and don't interpret control characters otherwise.
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Hashing a dictionary?
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EDIT: If all your keys are strings, then before continuing to read this answer, please see Jack O'Connor's significantly simpler (and faster) solution (which also works for hashing nested dictionaries).
Although an answer has been accepted, the title of the question is "Hashing a pytho...
MySQL error: key specification without a key length
...OB type such as VARCHAR and ENUM into TEXT or BLOB type, with the column already been defined as unique constraints or index. The Alter Table SQL command will fail.
The solution to the problem is to remove the TEXT or BLOB column from the index or unique constraint or set another field as primary k...
Do git tags get pushed as well?
.../a/16164809/11635 should be accepted. Even if not, it should definitely be read - it provides pros and cons and ultimately a more practical and correct answer for today
– Ruben Bartelink
Dec 23 '18 at 15:04
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.NET JIT potential error?
...ngly, I found that the x64 JIT does not have the same problem.
Here is my reading of the x86 JIT.
// save context
00000000 push ebp
00000001 mov ebp,esp
00000003 push edi
00000004 push esi
00000005 push ebx
// put oDoesSomething pointer in ebx
000...