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Append an object to a list in R in amortized constant time, O(1)?

... If it's a list of string, just use the c() function : R> LL <- list(a="tom", b="dick") R> c(LL, c="harry") $a [1] "tom" $b [1] "dick" $c [1] "harry" R> class(LL) [1] "list" R> That works on vectors too, so do I get the bo...
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initializer_list and move semantics

...y made that so in order to allow initializer lists to contain for instance string constants, from which it would be inappropriate to move. However, if you are in a situation where you know that the initializer list contains rvalue expressions (or you want to force the user to write those) then ther...
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Decoding and verifying JWT token using System.IdentityModel.Tokens.Jwt

... deserialising and serialising security tokens. The class has a ReadToken(String) method that will take your base64 encoded JWT string and returns a SecurityToken which represents the JWT. The SecurityTokenHandler also has a ValidateToken(SecurityToken) method which takes your SecurityToken and cr...
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How to set a Django model field's default value to a function call / callable (e.g., a date relative

... new_profile.save() def create_auth_token(self): import random, string auth = self.user.username[:4] # get first 4 characters in user name self.auth_token = auth + ''.join(random.SystemRandom().choice(string.ascii_uppercase + string.digits + string.ascii_lowercase) for _ in range...
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Add centered text to the middle of a -like line

... be specified in em units. To get hr width, use (.divider width minus # of chars) / 2 . – Kelvin Jan 31 '13 at 22:38 13 ...
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PHP: How to send HTTP response code?

..."); Note: According to the HTTP RFC, the reason phrase can be any custom string (that conforms to the standard), but for the sake of client compatibility I do not recommend putting a random string there. Note: php_sapi_name() requires PHP 4.0.1 3rd argument to header function (PHP >= 4.3) Th...
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How do I push amended commit to the remote Git repository?

... .git/config branch section). And after git push Maybe you will get an extra commit with the subject telling about a "Trivial merge". share | improve this answer | follow...
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mkdir -p functionality in Python [duplicate]

...rs will fail, in all multitasking operating systems. It's like saying "256 chars should be enough for any path created". – tzot Mar 2 '09 at 23:42 4 ...
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How can I write output from a unit test?

... I'm noticing that if your string has curly braces in it, the method blows up. So "_testContext.WriteLine("hello");" works but "_testContext.WriteLine("he{ll}o");" fails with "System.FormatException: Input string was not in a correct format." ...
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How do I run IDEA IntelliJ on Mac OS X with JDK 7?

...o.plist file, and changed this bit: <key>JVMVersion</key> <string>1.6*</string> to: <key>JVMVersion</key> <string>1.8*</string> After launching, everything was golden. sh...