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How to open a specific port such as 9090 in Google Compute Engine
...ol and ports. Enter all or a comma delimited list of ports, such as 67-69, 123.
Select Other protocols to include protocols such as icmp or sctp.
(Optional) You can create the firewall rule but not enforce it by setting its enforcement state to disabled. Click Disable rule, then select Disabled.
(...
Getting distance between two points based on latitude/longitude
...to the wise, this formula requires all degrees be positive. radians(abs(52.123)) should do the trick...
– Richard Dunn
Jul 4 '17 at 11:41
...
How to use a variable to specify column name in ggplot
... whoever heard of ensym() before? BIG SIGH
– CoderGuy123
Jun 4 '19 at 14:37
...
c++11 Return value optimization or move? [duplicate]
...
123
All return values are either already moved or optimized out, so there is no need to explicitly...
Nginx缓存解决方案：SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术
...效了？试试下面的命令：
shell> curl -v "http://foo.com/test?x=123&y=abc"
< X-SRCache-Fetch-Status: HIT
< X-SRCache-Store-Status: BYPASS
目前我主要用srcache来缓存一些接口的json结果集，这些接口同时也支持jsonp，也就是客户端传递一个callback参数之...
How to insert an element after another element in JavaScript without using a library?
...
123
Straightforward JavaScript Would Be the Following:
Append Before:
element.parentNode.insertB...
How do you use “git --bare init” repository?
... them to git and create the first commit.
> cd /path/to/work
> echo 123 > afile.txt
> git add .
> git config --local user.name adelphus
> git config --local user.email adelphus@example.com
> git commit -m "added afile"
[master (root-commit) 614ab02] added afile
1 file changed,...
__proto__ VS. prototype in JavaScript
...
123
Prototype property is created when a function is declared.
For instance:
function Person(d...
innerText vs innerHTML vs label vs text vs textContent vs outerText
...inspect the textual representation of the element, i.e.
<option value="123">text goes here</option>
^^^^^^^^^^^^^^
Btw,
.text appears to be the same as .innerText but the JQuery shorthand version
That's not correct; $(element).text() is the jQuery version whe...
What's the difference between interface and @interface in java?
...above annotation, you could use code like this:
@MyAnnotation(
value="123",
name="Jakob",
age=37,
newNames={"Jenkov", "Peterson"}
)
public class MyClass {
}
Reference - http://tutorials.jenkov.com/java/annotations.html
...