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How to check that a string is an int, but not a double, etc.?
... This will do some strange things such as return true for "+123". It is mitigated by that it's meant to return the true int but it still might not be what people want which is a strict int check.
– jgmjgm
Dec 11 '17 at 18:09
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How to get current foreground activity context in android?
...yManager)context.getSystemService(Context.ACTIVITY_SERVICE);
ComponentName cn = am.getRunningTasks(1).get(0).topActivity;
UPDATE 2018/10/03
getRunningTasks() is DEPRECATED. see the solutions below.
This method was deprecated in API level 21.
As of Build.VERSION_CODES.LOLLIPOP, this method is no l...
How do I get the width and height of a HTML5 canvas?
...
123
It might be worth looking at a tutorial: Firefox Canvas Tutorial
You can get the width and he...
How to kill all processes with a given partial name? [closed]
...one go, you don't need a loop for that. If the ps returns three processes 123, 234, and 345, you can kill 123 234 345 just like you can rm or cat multiple file arguments.
– tripleee
Jul 9 '12 at 7:49
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Open Facebook page from Android app?
...ered May 14 '16 at 21:40
Someguy123Someguy123
1,0541010 silver badges2424 bronze badges
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python re.sub group: number after \number
How can I replace foobar with foo123bar ?
1 Answer
1
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Cache busting via params
...
The param ?v=1.123 indicates a query string, and the browser will therefore think it is a new path from, say, ?v=1.0. Thus causing it to load from file, not from cache. As you want.
And, the browser will assume that the source will stay t...
How to select where ID in Array Rails ActiveRecord without exception
...ore relevant for Rails 4.x
Do this:
current_user.comments.where(:id=>[123,"456","Michael Jackson"])
The stronger side of this approach is that it returns a Relation object, to which you can join more .where clauses, .limit clauses, etc., which is very helpful. It also allows non-existent IDs ...
How to get UTF-8 working in Java webapps?
... in case anyone else has a similar problem.
– testing123
Dec 7 '11 at 15:33
3
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What are the rules for the “…” token in the context of variadic templates?
...comma ,.
It can be best understood by some examples. Suppose you have this function template:
template<typename ...T> //pack
void f(T ... args) //pack
{
// here are unpack patterns
g( args... ); //pattern = args
h( x(args)... ); //pattern = x(args)
m( y(args...) );...