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How do I syntax check a Bash script without running it?
...is documented, and as the beginning of the manpage states, bash interprets all single-character options that set does.
– ephemient
Oct 5 '08 at 20:55
24
...
Switch statement for string matching in JavaScript
...ode would match that in the "xxx.local" branch.
Update: Okay, so technically you can use a switch for substring matching, but I wouldn't recommend it in most situations. Here's how (live example):
function test(str) {
switch (true) {
case /xyz/.test(str):
display("• Matched '...
Markdown and image alignment
...de a class name like so (PHP Markdown Extra):
{.callout}
or, alternatively (Maruku, Kramdown, Python Markdown):
{: .callout}
Then, of course, you can use a stylesheet the proper way:
.callout {
float: right;
}
If yours supports this syn...
How can I solve a connection pool problem between ASP.NET and SQL Server?
...ey remain blocked until the .NET garbage collector closes them for you by calling their Finalize() method.
You want to make sure that you are really closing the connection. For example the following code will cause a connection leak, if the code between .Open and Close throws an exception:
var conn...
How can I get the button that caused the submit from the form submit event?
...document.activeElement);
if (
/* there is an activeElement at all */
$btn.length &&
/* it's a child of the form */
$form.has($btn) &&
/* it's really a submit element */
$btn.is('button[type="submit"], input[type="submit"], input...
How do I specify new lines on Python, when writing on files?
...
It depends on how correct you want to be. \n will usually do the job. If you really want to get it right, you look up the newline character in the os package. (It's actually called linesep.)
Note: when writing to files using the Python API, do not use the os.linesep. Just use ...
Begin, Rescue and Ensure in Ruby?
...
Yes, ensure ensures that the code is always evaluated. That's why it's called ensure. So, it is equivalent to Java's and C#'s finally.
The general flow of begin/rescue/else/ensure/end looks like this:
begin
# something which might raise an exception
rescue SomeExceptionClass => some_variab...
How to convert index of a pandas dataframe into a column?
...vel) and creates an int index from 0 to len(df)-1
– BallpointBen
Jan 10 '19 at 19:52
2
Assignment...
How to show a GUI message box from a bash script in linux?
...
I believe Zenity will do what you want. It's specifically designed for displaying GTK dialogs from the command line, and it's available as an Ubuntu package.
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Mockito How to mock only the call of a method of the superclass
...ad of extending a super class the problem is gone.
If however you are not allowed to change the code, but you must test it anyway, and in this awkward way, there is still hope. With some AOP tools (for example AspectJ) you can weave code into the super class method and avoid its execution entirely ...