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Difference between e.target and e.currentTarget
...):void{
trace(e.target.name, e.currentTarget.name);
}
e.target will be one of the 10 buttons and e.currentTarget will always be the "btns" clip.
It's worth noting that if you changed the MouseEvent to a ROLL_OVER or set the property btns.mouseChildren to false, e.target and e.currentTarget will...
Check if a Bash array contains a value
...ain value
fi
Note that in cases where the value you are searching for is one of the words in an array element with spaces, it will give false positives. For example
array=("Jack Brown")
value="Jack"
The regex will see "Jack" as being in the array even though it isn't. So you'll have to change...
How to convert a char to a String?
I have a char and I need a String . How do I convert from one to the other?
12 Answers
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Passing a list of kwargs?
...
The ** unpacking operator can be used to pass kwargs from one function to another function's kwargs. Consider this code: (newlines don't seem to be allowed in comments) def a(**kw): print(kw), and def b(**kw): a(kw). This code will generate an error because kwargs is actually a dict...
What is the best way to filter a Java Collection?
...
Java 8 (2014) solves this problem using streams and lambdas in one line of code:
List<Person> beerDrinkers = persons.stream()
.filter(p -> p.getAge() > 16).collect(Collectors.toList());
Here's a tutorial.
Use Collection#removeIf to modify the collection in place. (Not...
Is there a way to “autosign” commits in Git with a GPG key?
...
Further I might have multiple keys in my keyring, and might want to use one that doesn't match up with the address I use in commit messages.
This patch adds a configuration entry "user.signingKey" which, if present, will be passed to the "-u" switch for gpg, allowing the tag signing key to b...
Find first element by predicate
...you should leave it as an Optional type, which is what .findFirst returns. One of the uses of Optional is to help developers avoid having to deal with nulls. e.g. instead of checking myObject != null, you can check myOptional.isPresent(), or use other parts of the Optional interface. Did that make i...
Drop all tables whose names begin with a certain string
...You may need to modify the query to include the owner if there's more than one in the database.
DECLARE @cmd varchar(4000)
DECLARE cmds CURSOR FOR
SELECT 'drop table [' + Table_Name + ']'
FROM INFORMATION_SCHEMA.TABLES
WHERE Table_Name LIKE 'prefix%'
OPEN cmds
WHILE 1 = 1
BEGIN
FETCH cmds INTO...
What is the purpose of fork()?
...its own address space. This allows multiple tasks to run independently of one another as though they each had the full memory of the machine to themselves.
Here are some example usages of fork:
Your shell uses fork to run the programs you invoke from the command line.
Web servers like apache use...
how to show progress bar(circle) in an activity having a listview before loading the listview with d
...f showing a progress bar (circle) while loading an activity. In your case, one with a ListView in it.
IN ACTIONBAR
If you are using an ActionBar, you can call the ProgressBar like this (this could go in your onCreate()
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
setProgressBarI...