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RuntimeException: Unable to instantiate application
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This is a verbose error message raised by underlying framework when dalvik re-install .apk file and trying to reuse or recycle the previous opened activity/view from the same package (if you haven't closed the previous installed app yet). It has nothing to do with...
filter for complete cases in data.frame using dplyr (case-wise deletion)
...using this filter in a dplyr pipe with other dplyr commands (such as group_by()), you will need to add %>% data.frame() %>% before you try and filter on complete.cases(.) because it won't work on tibbles or grouped tibbles or something. Or at least, that has been the experience I have had.
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Please explain the exec() function and its family
...tly more efficient for the classic use case of fork() followed immediately by exec().
Note that there is a whole family of exec calls (execl, execle, execve and so on) but exec in context here means any of them.
The following diagram illustrates the typical fork/exec operation where the bash shell i...
How to validate an OAuth 2.0 access token for a resource server?
...le that would demonstrate Client Credentials Grant with Rest API protected by a local Resource Server and PingFederate as the Auth Server. The local resource server will then call the validation endpoint. Have you come across anything like that?
– JavaHead
Feb ...
Set the maximum character length of a UITextField
...s no max length property, it's relatively simple to get this functionality by setting the text field's delegate and implementing the following delegate method:
Objective-C
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
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What are “decorators” and how are they used?
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decorator can intercept service instance created by factory, service, value, provider, and gives the options to change some instance(service) that is otherwise not configurable / with options.
It can also provide mock up instances for testing purpose, for example $http.
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Access denied for user 'root@localhost' (using password:NO)
... @Bozo - Note that I couldn't run your command with mysqldt-nt I run it by mysqldt -nt Actuallythe first one is not recognizable for cmd. I'm waiting to hear from you.
– Nasser Hadjloo
Jun 8 '10 at 6:33
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How do I write the 'cd' command in a makefile?
...ommands as well. Note that you cannot use newlines as they are interpreted by make as the end of the rule, so any newlines you use for clarity needs to be escaped by a backslash.
For example:
all:
cd some_dir; echo "I'm in some_dir"; \
gcc -Wall -o myTest myTest.c
Note also tha...
Maximum execution time in phpMyadmin
...aries\config.default.php OR you can find path of your phpmyadmin directory by clicking wamp tray icon > Apache > Alias Directories and edit phpmyadmin. Also as mentioned by dsnunez, it's better to edit config.inc.php --edit-- editing config.inc.php didn't work for me
– Ab...
CSS background image alt attribute
...efore. I need to use alt tags on all images in a site including those used by CSS background-image attribute.
10 Answers
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