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Why should eval be avoided in Bash, and what should I use instead?
...mething went wrong.
# And this...
error 1234 'Something went wrong.'
# Result in the same output (as long as $IFS has not been modified).
Now say we want to add an option to redirect output as an argument to println. We could, of course, just redirect the output of println on each call, but for t...
How do I make a branch point at a specific commit? [duplicate]
...
git branch -f <branchname> <commit>
I go with Mark Longair's solution and comments and recommend anyone reads those before acting, but I'd suggest the emphasis should be on
git branch -f <branchname> <commit>
He...
Selecting a row in DataGridView programmatically
...
DataGridView.Rows
.OfType<DataGridViewRow>()
.Where(x => (int)x.Cells["Id"].Value == pId)
.ToArray<DataGridViewRow>()[0]
.Selected = true;
share...
How to remove line breaks (no characters!) from the string?
...
Dear friends, I just wanted so Hello. How are you guys? I'm fine, thanks!<br />
<br />
Greetings,<br />
Bill";
echo str_replace(array("\n", "\r"), '', $str); // echo $str in a single line
share
...
In Vim, I'd like to go back a word. The opposite of `w`
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Alternatively, if you use w, b, W, and B to navigate lines by hopping over words, consider the following alternatives which can be faster if used correctly.
f<char> # jump to next occurrence of <char> to right (...
Python module for converting PDF to text [closed]
...d/added):
def pdf_to_csv(filename):
from cStringIO import StringIO #<-- added so you can copy/paste this to try it
from pdfminer.converter import LTTextItem, TextConverter
from pdfminer.pdfparser import PDFDocument, PDFParser
from pdfminer.pdfinterp import PDFResourceManager, PD...
C++11 introduced a standardized memory model. What does it mean? And how is it going to affect C++ p
...cation is fundamentally single-threaded. So it is not possible to write multi-threaded C++ code that is "fully portable" with respect to the spec. The spec does not even say anything about the atomicity of memory loads and stores or the order in which loads and stores might happen, never mind thin...
JSON Array iteration in Android/Java
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I have done it two different ways,
1.) make a Map
HashMap<String, String> applicationSettings = new HashMap<String,String>();
for(int i=0; i<settings.length(); i++){
String value = settings.getJSONObject(i).getString("value");
String na...
How does the @property decorator work in Python?
I would like to understand how the built-in function property works. What confuses me is that property can also be used as a decorator, but it only takes arguments when used as a built-in function and not when used as a decorator.
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Find first element by predicate
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No, filter does not scan the whole stream. It's an intermediate operation, which returns a lazy stream (actually all intermediate operations return a lazy stream). To convince you, you can simply do the following test:
List<Int...