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How can I get a web site's favicon?
...this link and select "Save target as..." to save the Favicon on your local PC - and you're done!
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App Inventor 2 物联网入门的两个方向：BLE直连硬件 vs MQTT云端通信，你的...
... → BLE 是不二之选。
选型建议
• 如果你做的是单机版智能硬件原型（遥控灯、智能锁、温度计）→ 选 BLE，成本低、开发快、无需网络环境
• 如果你需要远程查看设备状态（远程监控、数据仪表盘）→ 选 MQTT，必须经过...
How to detect idle time in JavaScript elegantly?
...'s system? Let's say, a user with a fairly old browser on a not that heavy pc, is working in a javascript application for half a day, and it is processing these functions every time the user moves his mouse... I wonder if this won't affect the user's experience...
– Sander
...
Best way to do multi-row insert in Oracle?
... Around 10-12 Multiple INSERT statements get completed in 2secs on my PC, while the above syntax is able to INSERT 1000 records per sec! Impressed! Note that I COMMIT only at the end.
– Kent Pawar
Apr 22 '14 at 21:30
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Is it acceptable and safe to run pip install under sudo?
...use my Mac to install Python packages in the same way I do with my Windows PC at work; however on my Mac I've come across frequent permission denied errors while writing to log files or site-packages.
...
Where is PATH_MAX defined in Linux?
...hmax(void)
{
long pathmax = -1;
errno = 0;
pathmax = pathconf("/", _PC_PATH_MAX);
if (-1 == pathmax)
{
if (0 == errno)
{
#define PATHMAX_INFINITE_GUESS 4096
pathmax = PATHMAX_INFINITE_GUESS;
}
else
{
fprintf (stderr, "pathconf() FAILED, %d, %s\n", errno, st...
Select arrow style change
...D0nTTcgMTBsNSA1IDUtNXonLz48cGF0aCBkPSdNMCAwaDI0djI0SDB6JyBmaWxsPSdub25lJy8+PC9zdmc+);
To make it easier to size and space the arrow, use this svg:
url("data:image/svg+xml,<svg width='24' height='24' xmlns='http://www.w3.org/2000/svg'><path d='m0,6l12,12l12,-12l-24,0z'/><path fill='...
What does the number in parentheses shown after Unix command names in manpages mean?
...org/linux/man-pages/man2/open.2.html.
To see this in the man pages on your pc, simply type in man 2 open.
For FOPEN(3) use man 3 fopen, etc.
3. man <section_num> intro
To read the intro pages to a section, type in man <section_num> intro, such as man 1 intro, man 2 intro, man 7 intro, et...
Textarea onchange detection
...
It's 2012, the post-PC era is here, and we still have to struggle with something as basic as this. This ought to be very simple.
Until such time as that dream is fulfilled, here's the best way to do this, cross-browser: use a combination of the...
Input type=password, don't let browser remember the password
...for clocking in and out of work - it's stupid, since I always use the same PC/account at work, that I can't save the credentials on that site - strangely enough I can on my Android but not on an iPad. Even shared PCs this wouldn't be too bad since clocking in/out for someone else really doesn't do a...