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Append an object to a list in R in amortized constant time, O(1)?
...methods
}
Use them as follows:
> l <- expandingList()
> l$add("hello")
> l$add("world")
> l$add(101)
> l$as.list()
[[1]]
[1] "hello"
[[2]]
[1] "world"
[[3]]
[1] 101
These solutions could be expanded into full objects that support al list-related operations by themselves, but...
Using HTML in Express instead of Jade
...l
html. // THAT DOT
<body>
<div>Hello, yes this is dog</div>
</body>
PS - No need to close HTML - that's done automagically by Jade.
share
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Get protocol, domain, and port from URL
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Hello from 2015.. unfortunately URLUtils still isn't properly implemented across all browsers, according to this compatibility table on MDN. However it does seem that the origin property is slightly better supported than in 2...
Programmatically create a UIView with color gradient
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Hello @LaloLoop, thanks for the comment! I've updated the code. I don't think I have to override init(frame:CGRect) though. I tested the updated code and it works fine.
– Yuchen Zhong
Se...
Remote debugging Tomcat with Eclipse
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Hello Philip, added some notes that might help, if not: which os, tomcat, and eclipse versions are you using?
– karl
May 9 '17 at 20:33
...
Send data from activity to fragment in Android
...public class MyActivity extends Activity {
private String myString = "hello";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
...
}
public String getMyData() {
...
MySQL “WITH” clause
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@MostyMostacho Hello, could please spoon-feed me a little here? I'm struggling to convert it to MySQL. Can you take a look at it? link or answer my question here maybe? link
– Pranav
Jul 3 '15 at 20:05...
Why can't variable names start with numbers?
... If it had to be numbers+alpha, then you could still do String 0x123 = "Hello World". Unless you state that variable names are "numbers+alpha that don't parse to a valid numeric designation", and that's just silly.
– eaolson
Oct 11 '09 at 3:56
...
Best way to create enum of strings?
...ir toString-methods, e.g. in System.out.println(STRING_ONE) or String s = "Hello "+STRING_TWO, but when you really need Strings (e.g. STRING_ONE.toLowerCase()), you might prefer defining them as constants:
public interface Strings{
public static final String STRING_ONE = "ONE";
public static fi...
Python: How to create a unique file name?
... = tempfile.mkstemp()
try:
tfile = os.fdopen(fd, "w")
tfile.write("Hello, world!\n")
tfile.close()
subprocess.Popen(["/bin/cat", filename]).wait()
finally:
os.remove(filename)
Running that, you should find that the cat command worked perfectly well, but the temporary fi...