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How to add a progress bar to a shell script?
...; do
printf '\b%.1s' "$sp"
sp=${sp#?}${sp%???}
done
If you already have a loop which does a lot of work, you can call the
following function at the beginning of each iteration to update the
spinner:
sp="/-\|"
sc=0
spin() {
printf "\b${sp:sc++:1}"
((sc==${#sp})) && sc...
How do I resolve “Cannot find module” error using Node.js?
...
As an old developer I nearly choked when I read the Node devs "paradigm" that "disk space is cheap". I have libraries that I am using. The idea that I might have 100 copies (or worse, NEAR copies) makes my stomach turn. Disk space is cheap, but maintenance time is exp...
What is the difference between quiet NaN and signaling NaN?
I have read about floating-point and I understand that NaN could result from operations. But I can't understand what these are concepts exactly. What is the difference between them?
...
Initialize class fields in constructor or at declaration?
...ation on what the default value for that particular language would be. For readability purposes, I would always specify the default value.
– James
Jan 9 '13 at 12:50
32
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What does the caret (‘^’) mean in C++/CLI?
...
In C++/CLI it means a managed pointer. You can read more about it (and other C++/CLI features) here:
http://en.wikipedia.org/wiki/C%2B%2B/CLI
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decorators in the python standard lib (@deprecated specifically)
...rt of the Deprecated library:
Python package index (PyPi)
GitHub website
Read The Docs
Twitter
New stable release v1.2.10 ????
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Forward function declarations in a Bash or a Shell script?
...oo
bar
baz
}
foo() {
}
bar() {
}
baz() {
}
main "$@"
You can read the code from top to bottom, but it doesn't actually start executing until the last line. By passing "$@" to main() you can access the command-line arguments $1, $2, et al just as you normally would.
...
What is the use of the @ symbol in PHP?
...
Like already some answered before: The @ operator suppresses all errors in PHP, including notices, warnings and even critical errors.
BUT: Please, really do not use the @ operator at all.
Why?
Well, because when you use the @ ope...
boolean in an if statement
...eck is appropriate given the desire of the code. For example:
// The DOM ready check for Internet Explorer
function doScrollCheck() {
if ( jQuery.isReady ) {
return;
}
...
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Is it possible to make the -init method private in Objective-C?
...))];
return nil;
}
[self release] is needed because the object was already allocated. When using ARC the compiler will call it for you. In any case, not something to worry when you are about to intentionally stop execution.
objc_designated_initializer
In case you intend to disable init to fo...