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Android Bitmap to Base64 String
...putStream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, byteArrayOutputStream);
byte[] byteArray = byteArrayOutputStream .toByteArray();
to encode base64 from byte array use following method
String encoded = Base64.encodeToString(byteArray, Base64.DEFAULT);
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Why does DEBUG=False setting make my django Static Files Access fail?
Am building an app using Django as my workhorse. All has been well so far - specified db settings, configured static directories, urls, views etc. But trouble started sneaking in the moment I wanted to render my own beautiful and custom 404.html and 500.html pages.
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Read a file in Node.js
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There is a typo error in your code sample, your path.join is useless, use , instead of +
– Yves M.
Jul 25 '14 at 15:28
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Hidden features of Ruby
... Proc objects can be used in case statements like so:
def multiple_of(factor)
Proc.new{|product| product.modulo(factor).zero?}
end
case number
when multiple_of(3)
puts "Multiple of 3"
when multiple_of(7)
puts "Multiple of 7"
end
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What's a good (free) visual merge tool for Git? (on windows) [closed]
A similar question was already asked, but for Ubuntu.
7 Answers
7
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What is the actual use of Class.forName(“oracle.jdbc.driver.OracleDriver”) while connecting to a dat
...a reference to the class object with the FQCN (fully qualified class name) oracle.jdbc.driver.OracleDriver.
It doesn't "do" anything in terms of connecting to a database, aside from ensure that the specified class is loaded by the current classloader. There is no fundamental difference between writi...
How do you delete a column by name in data.table?
...3[, (myVar):=NULL] # lookup myVar contents
# Method 2a -- A safe idiom for excluding (possibly multiple)
# columns matching a regex
df3[, grep("^foo$", colnames(df3)):=NULL]
# Method 2b -- An alternative to 2a, also "safe" in the sense described below
df3[, which(grepl("^foo$", colnames(df3))):=...
How do you unit test a Celery task?
... possible to test tasks synchronously using any unittest lib out there. I normaly do 2 different test sessions when working with celery tasks. The first one (as I'm suggesting bellow) is completely synchronous and should be the one that makes sure the algorithm does what it should do. The second ses...
How can I get the DateTime for the start of the week?
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Troy, I do not believe your code works if the given date is a Sunday and your start of week is Monday. It will return (Sunday + 1) instead of (Sunday - 6)
– Aaron Hoffman
Apr 23 '12 at 14:55
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What Computer Science concepts should I know? [closed]
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Take a look at this blog post by Steve Yegge (formerly of Amazon, now at Google):
The Five Essential Phone Screen Questions
It goes into some detail about the the five most important concepts that developers should be required to know:
Basic programming (including r...