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NSUserDefaults - How to tell if a key exists
...ce objectForKey confuses 0 with nil, so it can't work. Tested successfully from iOS 4.3 to 10.2.1
– Chrysotribax
Mar 22 '17 at 17:38
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How can I see the SQL generated by Sequelize.js?
...or: Please note that find* was refactored and uses only one options object from now on.. For the latest sequelize version (4) if you want to have the result for only one command:
User.findAll({where: {...}, logging: console.log})
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How can I change the current URL?
I have the following code that changes the pages from within JavaScript:
5 Answers
5
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What is the difference between double-ampersand (&&) and semicolon (;) in Linux Bash?
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is the double ampersand && different from a single ampersand & in bash?
– Charlie Parker
Jan 16 '17 at 21:40
16
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What are the lesser known but useful data structures?
...indow has focused.
Amazingly, you can derive them by applying techniques from calculus to the type of the original data structure!
share
edited Jul 23 '10 at 3:01
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How do I get the path to the current script with Node.js?
...as the path.dirname() of the __filename.
Example: running node example.js from /Users/mjr
console.log(__dirname);
// Prints: /Users/mjr
console.log(path.dirname(__filename));
// Prints: /Users/mjr
https://nodejs.org/api/modules.html#modules_dirname
For ESModules you would want to use:
import.me...
Python concatenate text files
...en('path/to/output/file', 'w') as outfile:
for line in itertools.chain.from_iterable(itertools.imap(open, filnames)):
outfile.write(line)
Sadly, this last method leaves a few open file descriptors, which the GC should take care of anyway. I just thought it was interesting
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Convert special characters to HTML in Javascript
... escaping HTML is also used by the Prototype JS library though differently from the simplistic sample I have given.
Note: You will still need to escape quotes (double and single) yourself. You can use any of the methods outlined by others here.
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How do I get the name of the active user via the command line in OS X?
...43s /bin/bash
me pts/5 15:56 0.00s 0.23s 0.00s w
(This is from a Linux system; the formatting on OS X may be slightly different, but the information should be about the same.)
There may be multiple login sessions; UNIX is designed to be a multi-user system, after all.
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Programmatically Hide/Show Android Soft Keyboard [duplicate]
...);
}
},200); //use 300 to make it run when coming back from lock screen
}
I tried very hard and found out a solution ... whenever a new activity starts then keyboard cant open but we can use Runnable in onResume and it is working fine so please try this code and check...
U...