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Hide Utility Class Constructor : Utility classes should not have a public or default constructor
... my utility class final and have a private constructor. The constructor is now marked as the "uncovered line"
– Karthick S
Aug 11 '14 at 7:15
6
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Class type check in TypeScript
...;Fish>pet).swim !== undefined;
}
// Both calls to 'swim' and 'fly' are now okay.
if (isFish(pet)) {
pet.swim();
}
else {
pet.fly();
}
See more at:
https://www.typescriptlang.org/docs/handbook/advanced-types.html
sh...
How to use onSavedInstanceState example please
I'm confused when it comes down to saving a state. So I know that onSaveInstanceState(Bundle) is called when the activity is about to be destroyed. But how do you store your information in it and bring it back to its original state in onCreate(Bundle savedInstanceState) ? I don't understand how t...
Undo a Git merge that hasn't been pushed yet
...e, though, after a reset git will tell you where the new head is: "HEAD is now at 88a04de <commit message>". I always look at that to make sure that I ended up where I expected to be. My project uses a standard branch naming scheme to keep things memorable.
– Mark E. Haas...
How do you create a read-only user in PostgreSQL?
...ble to create tables anyway
GRANT CREATE ON SCHEMA public to writeuser;
# Now create the read-only user
CREATE ROLE readonlyuser WITH LOGIN ENCRYPTED PASSWORD 'strongpassword';
GRANT SELECT ON ALL TABLES IN SCHEMA public TO readonlyuser;
If your read-only user doesn't have permission to list tabl...
How to get the part of a file after the first line that matches a regular expression?
...ast line so the shell will not try to expand the $w variable (note that we now use double quotes around the script instead of single quotes).
I forgot to tell that the new line is important after the filenames in the script so that sed knows that the filenames end.
Edit: 2016-0530
Sébastien Cl...
How do I change the cursor between Normal and Insert modes in Vim?
I would like to know how to change, if possible, the cursor in Vim (in color, shape, etc.) depending on what mode you are in.
...
Why is the standard session lifetime 24 minutes (1440 seconds)?
...ode.
Then PHP4 came out in the year 2000 with native session support, but now the lifetime was specified in seconds.
I'll bet someone just never bothered converting minutes to seconds. It's probable that person was Sascha Schumann. Once that value was coded into the Zend engine, it became the co...
How to remove newlines from beginning and end of a string?
...
I have added explanations to my answer. I hope that now it is clear.
– Alexander Samoylov
Feb 25 at 11:31
add a comment
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How to write LDAP query to test if user is member of a group?
... On a whim I removed the single quotes after memberof and I now get a result! Thanks
– paul
Jun 23 '09 at 13:29
2
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