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How do I check how many options there are in a dropdown menu?
...t;
JQuery:
var numberOfOptions = $('select#myDropDown option').length
And a quick note, often you will need to do something in jquery for a very specific thing, but you first need to see if the very specific thing exists. The length property is the perfect tool.
example:
if($('#myDropDown ...
Method chaining - why is it a good practice, or not?
... right thing - I had a method which accepted something like 10 parameters, and needed more, but for the most time you only had to specify a few. With overrides this became very cumbersome very fast. Instead I opted for the chaining approach:
MyObject.Start()
.SpecifySomeParameter(asdasd)
.S...
Building and running app via Gradle and Android Studio is slower than via Eclipse
...of which building takes about 20-30 seconds each time. When I press Run in Android Studio, I have to wait every time to rebuild the app, which is extremely slow.
...
@AspectJ pointcut for all methods of a class with specific annotation
...dWithAtMonitor() {}
Advice the last pointcut that combines the first two and you're done!
If you're interested, I have written a cheat sheet with @AspectJ style here with a corresponding example document here.
share
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Groovy executing shell commands
...ed to set Environment Variables to this process, make sure to wrap the command in shell. For example, running a Perforce command with env vars: envVars = ["P4PORT=p4server:2222", "P4USER=user", "P4PASSWD=pass", "P4CLIENT=p4workspace"]; workDir = new File("path"); cmd = "bash -c \"p4 change -o 1234\"...
linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...quid/squid.conf ，最基本的设置如下。
http_port 192.168.16.1:8080
cache_mem 64 MB
cache_dir ufs /var/spool/squid 4096 16 256
cache_effective_user squid
cache_effective_group squid
dns_nameservers 61.144.56.101
cache_access_log /var/log/squid/access.log
cache_log /var/lo...
TypeError: method() takes 1 positional argument but 2 were given
...ten), you really don't care about the object that your method is bound to, and in that circumstance, you can decorate the method with the builtin staticmethod() function to say so:
class MyOtherClass:
@staticmethod
def method(arg):
print(arg)
...in which case you don't need to ad...
Remove Server Response Header IIS7
...hoDad this works for ASP.NET requests only, not for static files like .css and .js
– Max Toro
Jan 25 '13 at 17:06
1
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How to check if element in groovy array/hash/collection/list?
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And, in addition, to check if a map contains some not null value under a certain key, it is enough to check the following expression if(aMap["aKey"]==aValue).
– Naeel Maqsudov
Dec 18 '17...
AngularJS : When to use service instead of factory
...ng objects into AngularJS dependency injection system. It is very flexible and can contain sophisticated creation logic. Since factories are regular functions, we can also take advantage of a new lexical scope to simulate "private" variables. This is very useful as we can hide implementation details...