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Extract a substring according to a pattern
...001" "E002" "E003"
4a) substring/regex
If the colon were not always in a known position we could modify (4) by searching for it:
substring(string, regexpr(":", string) + 1)
5) strapplyc
strapplyc returns the parenthesized portion:
library(gsubfn)
strapplyc(string, ":(.*)", simplify = TRUE)
## [1] ...
How to delete last item in list?
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just simply use list.pop()
now if you want it the other way use : list.popleft()
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How to display HTML in TextView?
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That should be android.text.Html.fromHtml. I know most IDEs will fix it for you but for readability it is nicer to know the package names.
– Martin
Oct 22 '13 at 12:22
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Eclipse error: “The import XXX cannot be resolved”
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This bug is now at least 9 years old.
– user1133275
Mar 28 '19 at 16:40
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Why does 2 mod 4 = 2?
...nder is 0 or no bananas left when you shared all 6 bananas on 6 people.
Now, for 7 bananas and 6 people in group, you then will have 7 mod 6 = 1, this because you gave 6 people 1 banana each, and 1 banana is the remainder.
For 12 mod 6 or 12 bananas shared on 6 people, each one will have two ba...
Error 908: Permission RECEIVE_SMS has been denied. - App Inventor 2 中...
...nsciously enable the receiving option to receive texts.
The big challenge now was that people might want to develop apps for their own use that relied on the Google-censored functionality. This is where the “u” companion comes in. It is the companion as it would have been if Google hadn’t cha...
How to split a string and assign it to variables
...rDetail = net.SplitHostPort("0.0.0.1:8080") //Specific for Host and Port
Now use in you code like ServerDetail.Host and ServerDetail.Port
If you don't want to split specific string do it like this:
type ServerDetail struct {
Host string
Port string
}
ServerDetail = strings.S...
Java: How to Indent XML Generated by Transformer
...ark with stackoverflow.com/a/979606/837530, I removed the whitespaces, and now indents like a charm
– Sa'ad
Jun 24 '14 at 11:54
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How to align absolutely positioned element to center?
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If you want to center align an element without knowing it's width and height do:
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
Example:
*{
margin:0;
padding:0;
}
section{
background:red;
height: 100vh;
width: 100vw;
}...
How do I get the current username in .NET using C#?
...t the Name associated with the username?
– SearchForKnowledge
Jun 25 '15 at 15:23
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