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What does the ^ operator do in Java?
...nother question where the intention was to use exponentiation to convert a string "8675309" to int without using Integer.parseInt as a programming exercise (^ denotes exponentiation from now on). The OP's intention was to compute 8*10^6 + 6*10^5 + 7*10^4 + 5*10^3 + 3*10^2 + 0*10^1 + 9*10^0 = 867530...
Asterisk in function call
...
Maybe strings are not the best example because not everybody sees strings as iterables. Btw: Instead of chain(*it) I'd write chain.from_iterable(it).
– Jochen Ritzel
Mar 9 '11 at 0:46
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Can you have multiline HTML5 placeholder text in a ?
...should present this hint to the user when the element's value is the empty string and the control is not focused (e.g. by displaying it inside a blank unfocused control). All U+000D CARRIAGE RETURN U+000A LINE FEED character pairs (CRLF) in the hint, as well as all other U+000D CARRIAGE RETURN (CR) ...
Java 反射最佳实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...十分低下。我不希望这样写反射，我希望反射能像：
String str = new String();
这样简单，一行代码搞定！
此外，有很多人都说反射影响性能，在开发的时候要避免用反射。那么什么时候该用反射，什么时候不用反射呢？用什么...
List columns with indexes in PostgreSQL
...ect
t.relname as table_name,
i.relname as index_name,
array_to_string(array_agg(a.attname), ', ') as column_names
from
pg_class t,
pg_class i,
pg_index ix,
pg_attribute a
where
t.oid = ix.indrelid
and i.oid = ix.indexrelid
and a.attrelid = t.oid
and a.attn...
express.js - single routing handler for multiple routes in a single line
...to set the regex.
(bla|blabla) sets the regex to match, so it matches the strings bla and blablah.
? makes the entire regex optional, so it matches / as well.
share
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improve this answer
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How to convert int to char with leading zeros?
..."Len()" function works on ints, so there's no need to convert the int to a string before calling the len() function.
Lastly, you are not taking into account the case where the size of your int > the total number of digits you want it padded to (@intLen).
Therefore, a more concise / correct solu...
What's the difference between lapply and do.call?
...n gives me Error in do.call(c, x) : 'what' must be a function or character string...
– sindri_baldur
Jul 20 '17 at 20:45
1
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Linux command: How to 'find' only text files?
...xt files - I mean, is there any text file types that have no 'text' in the string of its mime type description?
– datasn.io
Jan 22 '11 at 11:58
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How to use multiple arguments for awk with a shebang (i.e. #!)?
...'s supposed to fail all the time. You could replace it with some gibberish string. Basically, I was looking for a false-condition in awk that would not adversely affect the shell script.
In the shell script, the arbitrary_long_name==0 defines a variable called arbitrary_long_name and sets it equal ...