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The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead [dupl
...hy is this happening?
The entire ext/mysql PHP extension, which provides all functions named with the prefix mysql_, was officially deprecated in PHP v5.5.0 and removed in PHP v7.
It was originally introduced in PHP v2.0 (November 1997) for MySQL v3.20, and no new features have been added since 2...
How to take screenshot of a div with JavaScript?
I am building something called the "HTML Quiz". It's completely ran on JavaScript and it's pretty cool.
10 Answers
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How to select rows from a DataFrame based on column values?
...have multiple values you want to include, put them in a
list (or more generally, any iterable) and use isin:
print(df.loc[df['B'].isin(['one','three'])])
yields
A B C D
0 foo one 0 0
1 bar one 1 2
3 bar three 3 6
6 foo one 6 12
7 foo three 7 14
Note,...
ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known
...
118
If you're on Mac, restarting the DNS responder fixed the issue for me.
sudo killall -HUP mDNS...
How to check which version of v8 is installed with my NodeJS?
How is V8 installed along with NodeJs? What version is my current V8 engine?
12 Answers
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'Java' is not recognized as an internal or external command
...ath variable
– Mohammad Heydari
May 11 '18 at 1:35
I already got a PATH variable. Can I change the content without rui...
How can you find and replace text in a file using the Windows command-line environment?
... comes with PowerShell built-in. Here is the script I used to find/replace all instances of text in a file:
powershell -Command "(gc myFile.txt) -replace 'foo', 'bar' | Out-File -encoding ASCII myFile.txt"
To explain it:
powershell starts up powershell.exe, which is included in Windows 7
-Command ...
Completion handler for UINavigationController “pushViewController:animated”?
...|
edited Oct 30 '18 at 19:11
answered Nov 17 '15 at 22:00
p...
check if jquery has been loaded, then load it if false
...
I believe appending a script tag to body works in all browsers.
– Steven Lu
Jan 6 '13 at 21:26
3
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App Inventor 2 计步传感器与距离测量教程 · App Inventor 2 中文网
...理
现代Android手机内置硬件计步器传感器（TYPE_STEP_COUNTER），精度高且功耗低。
使用扩展
需要计步器扩展（如StepCounter扩展）。
when Screen1.Initialize() {
var 今日步数 = 微数据库1.GetValue("today_steps", 0)
...