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Loop through an array of strings in Bash?
...
do
echo "$i"
# or do whatever with individual element of the array
done
# You can access them using echo "${arr[0]}", "${arr[1]}" also
Also works for multi-line array declaration
declare -a arr=("element1"
"element2" "element3"
"element4"
)...
Ternary Operator Similar To ?:
...having a temporary val for a following if-statement: Do it intelligible in one line, just like one have it in mind.
– Peter Schmitz
Feb 9 '11 at 22:48
add a comment
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What is a wrapper class?
... which "wraps" or "encapsulates" the functionality of another class or component. These are useful by providing a level of abstraction from the implementation of the underlying class or component; for example, wrapper classes that wrap COM components can manage the process of invoking the COM compo...
How to make --no-ri --no-rdoc the default for gem install?
..., thus the current answer to only include the gem directive is the correct one.
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What is the “-->” operator in C++?
...rd "then" implies there is an order (after post decrementing, x's value is one less). I think one can say "You're post decrementing x and then comparing its old value and 0 ..." to make it clearer. But this is nitpicking anyway. We all know what is meant.
– Johannes Schaub - li...
How to compare two NSDates: Which is more recent?
...ying to achieve a dropBox sync and need to compare the dates of two files. One is on my dropBox account and one is on my iPhone.
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When is assembly faster than C?
One of the stated reasons for knowing assembler is that, on occasion, it can be employed to write code that will be more performant than writing that code in a higher-level language, C in particular. However, I've also heard it stated many times that although that's not entirely false, the cases wh...
Clear file cache to repeat performance testing
... spread across 30 files in 10 subdirectories, you must open each and every one separately to make sure you read the actual disk instead of the cache?
– Synetech
Dec 1 '13 at 0:51
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Android: View.setID(int id) programmatically - how to avoid ID conflicts?
...ake any guarantees then as to which view is returned if there's more than one with the same ID? The docs don't mention anything.
– Matthias
May 3 '12 at 10:04
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JavaScript - get the first day of the week from current date
... 0=Sunday, 1=Monday, etc).
You can then subtract that number of days plus one, for example:
function getMonday(d) {
d = new Date(d);
var day = d.getDay(),
diff = d.getDate() - day + (day == 0 ? -6:1); // adjust when day is sunday
return new Date(d.setDate(diff));
}
getMonday(new Date(...