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Remove excess whitespace from within a string
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Not sure exactly what you want but here are two situations:
If you are just dealing with excess whitespace on the beginning or end of the string you can use trim(), ltrim() or rtrim() to remove it.
If you are dealing with extra spaces within a string consider a preg_replace of multipl...
How can I test a Windows DLL file to determine if it is 32 bit or 64 bit? [duplicate]
...e = $ARGV[0];
open(EXE, $exe) or die "can't open $exe: $!";
binmode(EXE);
if (read(EXE, $doshdr, 64)) {
($magic,$skip,$offset)=unpack('a2a58l', $doshdr);
die("Not an executable") if ($magic ne 'MZ');
seek(EXE,$offset,SEEK_SET);
if (read(EXE, $pehdr, 6)){
($sig,$skip,$machine)=u...
How to get the raw value an field?
...algorithm says the browser is supposed to set the value to an empty string if the input isn't a valid floating point number.
The value sanitization algorithm is as follows: If the value of the
element is not a valid floating-point number, then set it to the empty
string instead.
By specify...
How to make blinking/flashing text with CSS 3
...out. Last, I am using infinite. That means it will go on and on.
Note: If this doesn't work for you, use browser prefixes like
-webkit, -moz and so on as required for animation and
@keyframes. You can refer to my detailed code here
As commented, this won't work on older versions of Inter...
Why do objects of the same class have access to each other's private data?
...way.
Some hints of per-object control are present in protected access specification, which is why it even has its own dedicated chapter in the standard (11.5). But still any per-object features described there are rather rudimentary. Again, access control in C++ is meant to work on per-class basis....
How do I install an R package from source?
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If you have the file locally, then use install.packages() and set the repos=NULL:
install.packages(path_to_file, repos = NULL, type="source")
Where path_to_file would represent the full path and file name:
On Windows i...
package R does not exist
...ed by renaming the namespace folders. I just forgot to also edit AndroidManifest and that's why I got this error.
Make sure you check this as well.
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Is asynchronous jdbc call possible?
I wonder if there is a way to make asynchronous calls to a database?
16 Answers
16
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Django ManyToMany filter()
...s in the many-to-many and many-to-one tests. Here is syntax for your specific problem:
users_in_1zone = User.objects.filter(zones__id=<id1>)
# same thing but using in
users_in_1zone = User.objects.filter(zones__in=[<id1>])
# filtering on a few zones, by id
users_in_zones = User.objec...
Parsing IPv6 extension headers containing unknown extensions
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If you run into something you cannot parse, you have to make your decision or perform your action based on what you've parsed already.
The design is that way because in IPv6, each extension header "wraps" the rest of the pac...