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Good Hash Function for Strings
...mes, such as URLs: they will all have the same hash code (because they all start with "http://", which means that they are stored under the same bucket in a hash map, exhibiting terrible performance.
Here's a war story paraphrased on the String hashCode from "Effective Java":
The String hash fu...
A potentially dangerous Request.Form value was detected from the client
...obalFilters.Filters.Add(new ValidateInputAttribute(false)); in Application_Start().
– Alex
Jul 18 '12 at 11:14
15
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Understanding Spring @Autowired usage
...alidate that the injected beans are not null and fail fast when you try to start the application and avoid a NullPointerException when you need to actually use the bean.
Update: To complete the picture, I created a new question about the @Configuration class.
...
Emulator error: This AVD's configuration is missing a kernel file
...he other copy. I removed one of my copies of the SDK and then my emulator started right up.
– sffc
Jul 13 '15 at 6:43
...
How to run function in AngularJS controller on document ready?
...
Angular has several timepoints to start executing functions. If you seek for something like jQuery's
$(document).ready();
You may find this analog in angular to be very useful:
$scope.$watch('$viewContentLoaded', function(){
//do something
});
This...
AngularJS : Where to use promises?
...
Even in this case, which is only chaining together two operations, things start to get messy. The method askFacebookForAuthentication accepts a callback for failure and success, but what happens when FB.login succeeds but FB.api fails? This method always invokes the success callback regardless of...
本地通知使用指导 · App Inventor 2 中文网
..._播放.Click() {
音频播放器1.Source = "a.mp3"
音频播放器1.Start()
本地通知1.ShowMedia("晴天", "周杰伦", "")
}
when 本地通知1.NextClicked() {
音频播放器1.Source = "b.mp3"
音频播放器1.Start()
本地通知1.ShowMedia("七里香", "周杰伦", "")
}
不...
How to trigger a phone call when clicking a link in a web page on mobile phone
...
Just use HTML anchor tag <a> and start the attribute href with tel:. I suggest starting the phone number with the country code. pay attention to the following example:
<a href="tel:+989123456789">NO Different What it is</a>
For this example, t...
Not able to access adb in OS X through Terminal, “command not found”
... following (or verify via Configure > SDK Manager in the Android Studio startup screen):
Linux: $HOME/Android/Sdk
macOS: $HOME/Library/Android/sdk
Find out which shell profile to edit, depending on which file is used:
Linux: typically $HOME/.bashrc
macOS: typically $HOME/.bash_profile
With ...
How to take column-slices of dataframe in pandas
...tation that Python lists do for both row and columns. Slice notation being start:stop:step
# slice from 'foo' to 'cat' by every 2nd column
df.loc[:, 'foo':'cat':2]
# foo quz cat
# slice from the beginning to 'bar'
df.loc[:, :'bar']
# foo bar
# slice from 'quz' to the end by 3
df.loc[:, 'quz'::3]
...