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How to check if element exists using a lambda expression?
... is very simple, but I hope you get what I mean.
– Malte Hartwig
May 17 '17 at 16:21
@MalteHartwig thanks! yeah I get ...
Can you call Directory.GetFiles() with multiple filters?
... to use the Directory.GetFiles() method to retrieve a list of files of multiple types, such as mp3 's and jpg 's. I have tried both of the following with no luck:
...
What is the recommended way to delete a large number of items from DynamoDB?
...n was interrupted before completing the query; either
because of the result set size or the Limit parameter. The
LastEvaluatedKey can be passed back in a new query request to continue
the operation from that point.
Loop over all returned items and either facilitate DeleteItem as usual
Upda...
Using two values for one switch case statement
...
numDays = 28;
break;
default:
System.out.println("Invalid month.");
break;
}
System.out.println("Number of Days = "
+ numDays);
}
}
This is the output from the code:
Num...
How to change port number for apache in WAMP
...plorer find the location where WAMP server was installed
which is by Default C:\Wamp.
Update : On a newer version of WAMP, click the WAMP server icon > Apache > httpd.conf, then change the line Listen 80 to Listen 8080 or any port you want.
Update： On 3.1.6 version of WAMP ， right cli...
Check for array not empty: any?
... if (!len) return Qfalse;
if (!rb_block_given_p()) {
for (i = 0; i < len; ++i) if (RTEST(ptr[i])) return Qtrue;
}
else {
for (i = 0; i < RARRAY_LEN(ary); ++i) {
if (RTEST(rb_yield(RARRAY_AREF(ary, i)))) return Qtrue;
}
}
return Qfalse;
}
empty? on the other han...
Why are unnamed namespaces used and what are their benefits?
... you can have free functions called (for example) help that can exist in multiple translation units, and they won't clash at link time. The effect is almost identical to using the static keyword used in C which you can put in in the declaration of identifiers. Unnamed namespaces are a superior alter...
How can I push to my fork from a clone of the original repo?
...
By default, when you clone a repository
that resides at https://github.com/original/orirepo.git,
whose current branch is called master,
then
the local config of the resulting clone lists only one remote called origin, which is ...
Consistency of hashCode() on a Java string
... down Hashtable
lookup. In JDK 1.2 the function has
been improved to multiply the result
so far by 31 then add the next
character in sequence. This is a
little slower, but is much better at
avoiding collisions.
Source: http://mindprod.com/jgloss/hashcode.html
Something different, bec...
Member '' cannot be accessed with an instance reference
...
I had the same issue - although a few years later, some may find a few pointers helpful:
Do not use ‘static’ gratuitously!
Understand what ‘static’ implies in terms of both run-time and compile time semantics (behavior) and syntax.
A...