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puts vs logger in rails rake tasks
...a large
file. This can be useful for viewing
log files, etc.
Even more useful in some situations,
is the '-f' parameter to the 'tail'
command. This causes tail to 'follow'
the output of the file. Initially, the
response will be the same as for
'tail' on its own - the last few line...
How to zip a whole folder using PHP
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Is there a way to check if a file is in use?
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Which characters need to be escaped when using Bash?
...ed command: sed -e 's/./\\&/g; 1{$s/^$/""/}; 1!s/^/"/; $!s/$/"/'.
2b. More readable version of 2
There's an easy safe set of characters, like [a-zA-Z0-9,._+:@%/-], which can be left unescaped to keep it more readable
I\'m\ a\ s@fe\ \$tring\ which\ ends\ in\ newline"
"
sed command: LC_ALL=C ...
Why are my JavaScript function names clashing?
...f();
Which explains what you're getting, you're overriding the function. More generally, multiple var declarations are allowed in JavaScript - var x = 3; var x = 5 is perfectly legal. In the new ECMAScript 6 standard, let statements forbid this.
This article by @kangax does a fantastic job in dem...
Vim: What's the difference between let and set?
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Set is a more user-friendly interface specialized for options
E.g.
:verbose set
to display all options in effect.
:set tw=40
Will work as a shorthand for set textwidth=40
:set wrap&
Will set the default value for option...
python generator “send” function purpose?
...sent back to the doStuff() function. Thus the doStuff() can end up looking more or less like a normal procedural function, except it can be doing all sorts of computations & callbacks etc. The alternative before this functionality would be to do something like:
def doStuff():
returnDeferred...
Python unit test with base and sub class
...er that or wrapping the BaseTest class in a container class which is a bit more hacky but avoids the skip message in the test run printout.
– David Sanders
Oct 17 '14 at 16:23
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How to normalize a NumPy array to within a certain range?
...ay not be the same as human long division, but nevertheless I believe it's more complicated than multiplication.
– unutbu
Nov 15 '09 at 0:49
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