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Pointers vs. values in parameters and return values
...ices, you don't need to pass a pointer to change elements of the array. io.Reader.Read(p []byte) changes the bytes of p, for instance. It's arguably a special case of "treat little structs like values," since internally you're passing around a little structure called a slice header (see Russ Cox (rs...
How to get the current loop index when using Iterator?
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that is exactly the way i did it before i read the answer of Paul. I would strongly discourage your way, because I don't see any advantage to it. Do you think there is an advantage (except for the one mentioned). Why didn't you use a for-each loop? Defining the Itera...
How to correct TypeError: Unicode-objects must be encoded before hashing?
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The error already says what you have to do. MD5 operates on bytes, so you have to encode Unicode string into bytes, e.g. with line.encode('utf-8').
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month name to month number and vice versa in python
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Fixed it. I should have read the documentation more carefully, I missed that calendar.month_abbr was an array instead of a dictionary.
– David Z
Aug 5 '10 at 19:14
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Git - How to close commit editor?
...On Linux I used Ctrl+X (and Y to confirm) and then I was back on the shell ready to pull/push.
On Windows GIT Bash Ctrl+X would do nothing and found out it works quite like vi/vim. Press i to enter inline insert mode. Type the description at the very top, press esc to exit insert mode, then type :x...
How to create an infinite loop in Windows batch file?
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read help GOTO
and try
:again
do it
goto again
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What's the best mock framework for Java? [closed]
...annoying. Mockito removes this, also has a cleaner syntax as it looks like readability was one of its primary goals. I cannot stress enough how important this is, since most of developers will spend their time reading and maintaining existing code, not creating it.
Another nice thing is that inter...
How can I list the contents of a directory in Python?
...e to know if it's a file or not, and that saves CPU time because stat is already done when scanning dir in Windows:
example to list a directory and print files bigger than max_value bytes:
for dentry in os.scandir("/path/to/dir"):
if dentry.stat().st_size > max_value:
print("{} is bi...
What is the meaning of the 'g' flag in regular expressions?
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Beside already mentioned meaning of g flag, it influences regexp.lastIndex property:
The lastIndex is a read/write integer property of regular expression
instances that specifies the index at which to start the next match.
(....
How to map with index in Ruby?
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IMO this is simpler and better-reading in 1.8.7+: arr.map.with_index{ |o,i| [o,i+2] }
– Phrogz
Jan 15 '11 at 2:43
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