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mongoDB/mongoose: unique if not null
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edited Jun 24 '15 at 15:14
answered Mar 13 '12 at 22:23
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Build the full path filename in Python
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302
This works fine:
os.path.join(dir_name, base_filename + "." + filename_suffix)
Keep in mind tha...
How to make an HTTP request + basic auth in Swift
...(request: request, delegate: self)
Or in an NSMutableURLRequest in Swift 2:
// set up the base64-encoded credentials
let username = "user"
let password = "pass"
let loginString = NSString(format: "%@:%@", username, password)
let loginData: NSData = loginString.dataUsingEncoding(NSUTF8StringEncodi...
Create a .txt file if doesn't exist, and if it does append a new line
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answered Mar 28 '12 at 12:42
Daniel HilgarthDaniel Hilgarth
156k3535 gold badges285285 silver badges397397 bronze badges
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Android : Check whether the phone is dual SIM
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Update 23 March'15 :
Official multiple SIM API is available now from Android 5.1 onwards
Other possible option :
You can use Java reflection to get both IMEI numbers.
Using these IMEI numbers you can check whether the ph...
Linq order by boolean
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edited Mar 23 '11 at 16:22
answered Mar 23 '11 at 16:16
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How random is JavaScript's Math.random?
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Given numbers between 1 and 100.
9 have 1 digit (1-9)
90 have 2 digits (10-99)
1 has 3 digits (100)
Given numbers between 1 and 1000.
9 have 1 digit
90 have 2 digits
900 have 3 digits
1 has 4 digits
and so on.
So if you select some at random, then that vast majority of selected n...
PHP server on local machine?
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answered Nov 5 '09 at 2:52
LukmanLukman
16.4k55 gold badges4949 silver badges6060 bronze badges
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How to escape a single quote inside awk
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edited May 21 '15 at 10:39
fedorqui 'SO stop harming'
212k7373 gold badges432432 silver badges485485 bronze badges
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List distinct values in a vector in R
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Do you mean unique:
R> x = c(1,1,2,3,4,4,4)
R> x
[1] 1 1 2 3 4 4 4
R> unique(x)
[1] 1 2 3 4
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