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Get image data url in JavaScript?
...escaped / in the return), it does not create the same base64 string as the one I'm getting from PHP when doing base64_encode on the file obtained with file_get_contents function. The images seem very similar/the same, still the Javascripted one is smaller and I'd love them to be exactly the same. O...
How can I remove a trailing newline?
...trip() method strips all kinds of trailing whitespace by default, not just one newline as Perl does with chomp.
>>> 'test string \n \r\n\n\r \n\n'.rstrip()
'test string'
To strip only newlines:
>>> 'test string \n \r\n\n\r \n\n'.rstrip('\n')
'test string \n \r\n\n\r '
There a...
Case objects vs Enumerations in Scala
...
One big difference is that Enumerations come with support for instantiating them from some name String. For example:
object Currency extends Enumeration {
val GBP = Value("GBP")
val EUR = Value("EUR") //etc.
}
Then yo...
Python != operation vs “is not”
... side and the left hand side are the very same object. No methodcalls are done, objects can't influence the is operation.
You use is (and is not) for singletons, like None, where you don't care about objects that might want to pretend to be None or where you want to protect against objects breaking...
Is it not possible to stringify an Error using JSON.stringify?
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In case anyone pays attention to their linker errors and naming conflicts: if using the replacer option, you should choose a different parameter name for key in function replaceErrors(key, value) to avoid naming conflict with .forEach(f...
How can I discard remote changes and mark a file as “resolved”?
...cts as resolved, which you can do with git add, and commit your work once done:
git checkout --ours . # checkout our local version of all files
git add -u # mark all conflicted files as merged
git commit # commit the merge
Note the . in the git checkout command. That's ve...
How to clone a case class instance and change just one field in Scala?
...t; 'sentMessages
val existingPersona = Persona("store", "apple", Set("iPhone"))
// When you need the new copy, by setting the value,
val newPersona1 = messageLens.set(existingPersona)(Set.empty)
// or by other operation based on current value.
val newPersona2 = messageLens.modify(existingPersona)...
How do I duplicate a whole line in Emacs?
...e cursor to next line
M-w: copy region
C-y: paste ("yank")
The aforementioned
C-a C-k C-k C-y C-y
amounts to the same thing (TMTOWTDI)
C-a: move cursor to start of line
C-k: cut ("kill") the line
C-k: cut the newline
C-y: paste ("yank") (we're back at square one)
C-y: paste again (now we've g...
iPhone hide Navigation Bar only on first page
...ed];
}
Easy way to customize the behavior for each ViewController all in one place.
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ADB No Devices Found
...the other solutions worked for me (manually editing .inf file, ect...) but one click and wa la issue resolved.
– Lorenz03Tx
Nov 25 '13 at 21:17
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