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Is there any downside for using a leading double slash to inherit the protocol in a URL? i.e. src=“/
I have a stylesheet that loads images from an external domain and I need it to load from https:// from secure order pages and http:// from other pages, based on the current URL. I found that starting the URL with a double slash inherits the current protocol. Do all browsers support this technique?...
I lose my data when the container exits
Despite Docker's Interactive tutorial and faq I lose my data when the container exits.
11 Answers
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How do you print in Sublime Text 2
Sublime Text 2 seems like a great editor. I just started using it a week ago in eval mode and it doesn't seem to have any printing functionality. This seems preposterous to me, but I can't find it anywhere.
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List of Big-O for PHP functions
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Since it doesn't seem like anyone has done this before I thought it'd be good idea to have it for reference somewhere. I've gone though and either via benchmark or code-skimming to characterize the array_* functions. I've tried to ...
How to run iPhone emulator WITHOUT starting Xcode?
On my old Mac running Snow Leopard, I could type "ios" into spotlight and it would start up the iPhone/iPad emulator by itself.
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Checking whether something is iterable
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The proper way to check for iterability is as follows:
function isIterable(obj) {
// checks for null and undefined
if (obj == null) {
return false;
}
return typeof obj[Symbol.iterator] === 'function';
}
Why this works (iterable protocol i...
Saving and loading objects and using pickle
...there will be no further data to read. You have to rewind the file so that it will be read from the beginning again:
file.seek(0)
What you usually want to do though, is to use a context manager to open the file and read data from it. This way, the file will be automatically closed after the block...
SQL is null and = null [duplicate]
...considered as false for the purposes of a where clause (strictly speaking, it's "not true", rather than "false", but the effect is the same).
The reasoning is that a null means "unknown", so the result of any comparison to a null is also "unknown". So you'll get no hit on rows by coding where my_co...
SVN (Subversion) Problem “File is scheduled for addition, but is missing” - Using Versions
...le via
svn add myfile
you only told svn to put this file into your repository when you do your next commit. There's no change to the repository before you type an
svn commit
If you delete the file before the commit, svn has it in its records (because you added it) but cannot send it to the rep...
Best way to convert an ArrayList to a string
...that I want to output completely as a String. Essentially I want to output it in order using the toString of each element separated by tabs. Is there any fast way to do this? You could loop through it (or remove each element) and concatenate it to a String but I think this will be very slow.
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