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Block commenting in Ruby
Does Ruby have block comments?
4 Answers
4
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Get generic type of class at runtime
...ot working in all cases like stateless remote beans which are instantiated by container/reflection.
– djmj
Dec 10 '14 at 10:24
6
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git add . vs git commit -a
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By using the git commit -a switch with the commit command to automatically "add" changes from all known files (i.e. all files that are already listed in the index)
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Importing modules from parent folder
...a package, i.e., you must have an init.py file.
– kirbyfan64sos
Oct 17 '13 at 21:59
35
Attempted ...
Python argparse: default value or specified value
...rentiation of "" (empty string as default) and "" (empty string as entered by user). In the code for now I'm using the default and since I need to do some ops, I have something like this self.foo = (args.bar or some_else_source).upper(). It will break on None object AFAIUC.
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Add a prefix string to beginning of each line
... moreutils
$ cat file | ts prefix | tr -d ' '
And how it's derived step by step:
# Step 0. create the file
$ cat file
line1
line2
line3
# Step 1. add prefix to the beginning of each line
$ cat file | ts prefix
prefix line1
prefix line2
prefix line3
# Step 2. remove spaces in the middle
$ ...
In mocha testing while calling asynchronous function how to avoid the timeout Error: timeout of 2000
...hen Mocha doesn't receive assertion errors from a callback. This is caused by some other code swallowing the exception further up the stack. The right way of dealing with this is to fix the code and not swallow the error.
When external code swallows your errors
In case it's a library function that...
Emacs: print key binding for a command or list all key bindings
...you all bindings. C-h m (M-x describe-mode) is also handy to list bindings by mode.
You might also try C-h k (M-x describe-key) to show what command is bound to a key. For instance, on my machine save-buffers-kill-emacs isn't bound to anything, but C-h k C-x C-c tells me that C-x C-c is bound to s...
How to add target=“_blank” to JavaScript window.location?
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@BenRacicot well yes, popups are blocked by default and most people don't change that
– twinlakes
Nov 5 '15 at 0:11
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Checking if form has been submitted - PHP
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That's true; it can also check any variable posted by AJAX.
– Tzshand
Jun 7 '17 at 22:00
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