大约有 41,000 项符合查询结果（耗时：0.0547秒） [XML]
How do you add an array to another array in Ruby and not end up with a multi-dimensional result?
...
You've got a workable idea, but the #flatten! is in the wrong place -- it flattens its receiver, so you could use it to turn [1, 2, ['foo', 'bar']] into [1,2,'foo','bar'].
I'm doubtless forgetting some approaches, but you can concatenate:...
How to get min/max of two integers in Postgres/SQL?
How do I find the maximum (or minimum) of two integers in Postgres/SQL? One of the integers is not a column value.
2 Answer...
How to round up the result of integer division?
...ar of how to display pagination controls, when using a language such as C# or Java.
16 Answers
...
How do you remove an invalid remote branch reference from Git?
...
You might be needing a cleanup:
git gc --prune=now
or you might be needing a prune:
git remote prune public
prune
Deletes all stale tracking branches under <name>. These stale branches have already been removed from the remote repository referenced by <nam...
Iterating over every two elements in a list
How do I make a for loop or a list comprehension so that every iteration gives me two elements?
21 Answers
...
What is the documents directory (NSDocumentDirectory)?
Can someone explain to me what the documents directory is on an iOS app and when to use it?
9 Answers
...
How do I verify that an Android apk is signed with a release certificate?
...the Android SDK
(means it is unsigned), otherwise you will find something for CN.
For more details see: http://developer.android.com/guide/publishing/app-signing.html
share
|
improve this answer
...
Constructors vs Factory Methods [closed]
...
From page 108 of Design Patterns: Elements of Reusable Object-Oriented Software by Gamma, Helm, Johnson, and Vlissides.
Use the Factory Method pattern when
a class can't anticipate the class of objects it must create
a class wants its subclasses to specify the objects it creates
clas...
Java: Literal percent sign in printf statement
...actual percent sign into a printf statement in Java and I'm getting the error:
3 Answers
...
Why use apparently meaningless do-while and if-else statements in macros?
...tement were not wrapped in curly brackets, you'd get a bad surprise.
if (corge)
BAR(corge);
else
gralt();
The above code would expand into
if (corge)
f(corge); g(corge);
else
gralt();
which is syntactically incorrect, as the else is no longer associated with the if. It doesn't help to...