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How can I generate a unique ID in Python? [duplicate]
...st a sequence generator. Statistically unique IDs typically are generated from random data; at least one class of UUIDs works that way.
– Glenn Maynard
Jul 31 '09 at 4:38
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Piping command output to tee but also save exit code of command [duplicate]
...e variable is ephemeral, so even "echo"-ing it out will lose you the value from running the pipeline. Assign it to another variable unless you will access it immediately, and only once.
– Davor Cubranic
Sep 12 at 1:49
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Difference between as.POSIXct/as.POSIXlt and strptime for converting character vectors to POSIXct/PO
...in the case of character, it runs strptime first, then does the conversion from POSIXlt to POSIXct.
It makes sense that strptime is faster, because strptime only handles character input whilst the others try to determine which method to use from input type. It should also be a bit safer in that bei...
Passing references to pointers in C++
...ope, not an anonymous string pointer. Regardless, both are likely correct from my perspective.
– kevinarpe
Jul 30 '16 at 14:01
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How to index into a dictionary?
...n implementation detail. The language specification includes ordered dicts from 3.7 onwards.)
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Examples of GoF Design Patterns in Java's core libraries
...ch doesn't clone the items, but uses them. The java.util.Collections#newSetFromMap() and singletonXXX() methods however comes close.
Composite (recognizeable by behavioral methods taking an instance of same abstract/interface type into a tree structure)
java.awt.Container#add(Component) (practical...
What does href expression do?
I have seen the following href used in webpages from time to time. However, I don't understand what this is trying to do or the technique. Can someone elaborate please?
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How can I create an error 404 in PHP?
...t's not good to REDIRECT to your 404 page, but you can INCLUDE the content from it with no problem. That way, you have a page that properly sends a 404 status from the correct URL, but it also has your "what are you looking for?" page for the human reader.
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How can I count text lines inside an DOM element? Can I?
... the div's size is dependent on the content (which I assume to be the case from your description) then you can retrieve the div's height using:
var divHeight = document.getElementById('content').offsetHeight;
And divide by the font line height:
document.getElementById('content').style.lineHeight...
Array.size() vs Array.length
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.size() is jQuery's, much probably you're either confusing with or took from someone else who had imported the jQuery library to his project.
If you'd have jQuery imported and you'd write like $(array).size(), it would return the array length.
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