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Check if element is visible in DOM
...ocumentation, an element's offsetParent property will return null whenever it, or any of its parents, is hidden via the display style property. Just make sure that the element isn't fixed. A script to check this, if you have no position: fixed; elements on your page, might look like:
// Where el ...
Test if a string contains any of the strings from an array
How do I test a string to see if it contains any of the strings from an array?
14 Answers
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How to determine if a process runs inside lxc/Docker?
...
The most reliable way is to check /proc/1/cgroup. It will tell you the control groups of the init process, and when you are not in a container, that will be / for all hierarchies. When you are inside a container, you will see the name of the anchor point. With LXC/Docker con...
What does tree-ish mean in Git?
I'm very confused about how to use git archive .
6 Answers
6
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How are people managing authentication in Go? [closed]
...g like the following design:
create table User (
ID int primary key identity(1,1),
Username text,
FullName text,
PasswordHash text,
PasswordSalt text,
IsDisabled bool
)
create table UserSession (
SessionKey text primary key,
UserID int not null, -- Could have a hard "references User"
Logi...
Obfuscated C Code Contest 2006. Please explain sykes2.c
...
Let's de-obfuscate it.
Indenting:
main(_) {
_^448 && main(-~_);
putchar(--_%64
? 32 | -~7[__TIME__-_/8%8][">'txiZ^(~z?"-48] >> ";;;====~$::199"[_*2&8|_/64]/(_&2?1:8)%8&1
: 10);
}
Introduc...
What's the difference between findAndModify and update in MongoDB?
I'm a little bit confused by the findAndModify method in MongoDB. What's the advantage of it over the update method? For me, it seems that it just returns the item first and then updates it. But why do I need to return the item first? I read the MongoDB: the definitive guide and it says that i...
How do you find out the caller function in JavaScript?
... This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The following is the old answer from 200...
How do I find Waldo with Mathematica?
... America] puzzles, using Mathematica (image-processing and other functionality)?
5 Answers
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LogCat message: The Google Play services resources were not found. Check your project configuration
...lay-services_lib library project to my workspace and added a reference to it from my application project, following the instructions on these pages:
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