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Keeping ASP.NET Session Open / Alive
...ssion alive:
function setHeartbeat() {
setTimeout("heartbeat()", 5*60*1000); // every 5 min
}
function heartbeat() {
$.get(
"/SessionHeartbeat.ashx",
null,
function(data) {
//$("#heartbeat").show().fadeOut(1000); // just a little "red flash" in the corne...
Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
...er half for about six months.
Eric Gunnerson explains this well with his -100 points explanation as to why things aren't always added to Microsoft products- basically a feature starts 100 points in the hole so it has to add quite a bit of value to be even considered.
In other words, would you rath...
ab load testing
...hould run to figure this out.
The simplest test you can do is to perform 1000 requests, 10 at a time (which approximately simulates 10 concurrent users getting 100 pages each - over the length of the test).
ab -n 1000 -c 10 -k -H "Accept-Encoding: gzip, deflate" http://www.example.com/
-n 1000 ...
how to schedule a job for sql query to run daily?
...99991231, --YYYYMMDD (this represents no end date)
@active_start_time=010000, --HHMMSS
@active_end_time=235959; --HHMMSS
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ios app maximum memory budget
...d_bytes / 1024.0f / 1024.0f, total_bytes / 1024.0f / 1024.0f, used_bytes * 100.0f / total_bytes);
return used_bytes / total_bytes;
}
return 1;
}
Swift (based on this answer):
func __getMemoryUsedPer1() -> Float
{
let MACH_TASK_BASIC_INFO_COUNT = (sizeof(mach_task_basic_info...
How to retrieve inserted id after inserting row in SQLite using Python?
...e('INSERT INTO foo (id,username,password) VALUES (?,?,?)',
(100,'blah','blah'))
print(cursor.lastrowid)
# 100
Note that lastrowid returns None when you insert more than one row at a time with executemany:
cursor.executemany('INSERT INTO foo (username,password) VALUES (?,?)',
...
Get first key in a (possibly) associative array?
...s time I found the foreach only about twice as fast as reset/key. I used a 100-key array and ran each method a million times to get some noticeable difference, here's code of the simple benchmark:
$array = [];
for($i=0; $i < 100; $i++)
$array["key$i"] = $i;
for($i=0, $start = microtime(true...
Text editor to open big (giant, huge, large) text files [closed]
I mean 100+ MB big; such text files can push the envelope of editors.
2 Answers
2
...
How long should SQL email fields be? [duplicate]
...need worry about these long Email addresses? If someone can't login with a 100-char Email, do you really care? We actually prefer they can't.
Some statistical data may shed some light on the issue. We analyzed a database with over 10 million Email addresses. These addresses are not confirmed so the...
str performance in python
...
'%s' % 100000 is evaluated by the compiler and is equivalent to a constant at run-time.
>>> import dis
>>> dis.dis(lambda: str(100000))
8 0 LOAD_GLOBAL 0 (str)
3 LOAD_CONST ...