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This app won't run unless you update Google Play Services (via Bazaar)

... UPDATE The Google maps API v2 is now installed on the latest Google system images (api:19 ARM or x86). So your application should just work with the new images. There is no need to install these files. I've been trying to run an Android Google Maps V2 application u...
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str performance in python

...; import dis >>> dis.dis(lambda: str(100000)) 8 0 LOAD_GLOBAL 0 (str) 3 LOAD_CONST 1 (100000) 6 CALL_FUNCTION 1 9 RETURN_VALUE >>> dis.dis(lambda: '%s' % 100000) 9 0 LOAD...
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Declare and Initialize String Array in VBA

... Dim myStringArray() As String *code* redim myStringArray(size_of_your_array) Then you can do something static like this: myStringArray = { item_1, item_2, ... } Or something iterative like this: Dim x For x = 0 To size_of_your_array myStringArray(x) = data_source(x).Name Nex...
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Test if string is a number in Ruby on Rails

...def is_number? string true if Float(string) rescue false end And then call it like this: my_string = '12.34' is_number?( my_string ) # => true Extend String Class. If you want to be able to call is_number? directly on the string instead of passing it as a param to your helper function, t...
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Basic HTTP authentication with Node and Express 4

...he bare minimum you need: (you don't even need to parse the credentials at all) function (req, res) { //btoa('yourlogin:yourpassword') -> "eW91cmxvZ2luOnlvdXJwYXNzd29yZA==" //btoa('otherlogin:otherpassword') -> "b3RoZXJsb2dpbjpvdGhlcnBhc3N3b3Jk" // Verify credentials if ( req.headers.a...
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Why aren't ◎ܫ◎ and ☺ valid JavaScript variable names?

...associated with any alphabet. The ECMAScript standard, chapter 7.6 (which all the browsers except Internet Explorer are following), states that an identifier must start with one of the following. a Unicode letter $ or _ \ followed by a unicode escape sequence. The following characters of an ide...
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O(nlogn) Algorithm - Find three evenly spaced ones within binary string

... Finally! Following up leads in sdcvvc's answer, we have it: the O(n log n) algorithm for the problem! It is simple too, after you understand it. Those who guessed FFT were right. The problem: we are given a binary string S of l...
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What is digest authentication?

...es with the username, realm, password and the URI request. The client runs all of those fields through an MD5 hashing method to produce a hash key. It sends this hash key to the server along with the username and the realm to attempt to authenticate. Server-side the same method is used to generate...
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How can I pad an int with leading zeros when using cout

...ormatted output to a string (char* or char[]) not to console directly. Actually I am writing a function that returns formatted string – shashwat Dec 23 '12 at 9:32 14 ...
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Does ARC support dispatch queues?

...d as * Objective-C types when building with an Objective-C compiler. This allows * them to participate in ARC, in RR management by the Blocks runtime and in * leaks checking by the static analyzer, and enables them to be added to Cocoa * collections. * * NOTE: this requires explicit cancellati...