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Remove Last Comma from a string
...beginning and end of the regular expression
The , matches the comma
The \s means whitespace characters (space, tab, etc) and the * means 0 or more
The $ at the end signifies the end of the string
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Difference between Big-O and Little-O Notation
...true, but f ∈ o(f) is false. Therefore, Big-O can be read as "f ∈ O(g) means that f's asymptotic growth is no faster than g's", whereas "f ∈ o(g) means that f's asymptotic growth is strictly slower than g's". It's like <= versus <.
More specifically, if the value of g(x) is a constant m...
Difference between “on-heap” and “off-heap”
... 'Full GC'. A full GC involves scanning the complete allocated Heap, which means GC pauses/slowdowns are proportional to an applications heap size. So don't trust any person telling you 'Memory is Cheap'. In java memory consumtion hurts performance. Additionally you may get notable pauses using heap...
What does -save-dev mean in npm install grunt --save-dev
...nderstand the visualization and I didn't. What does each bullet-point item mean? A folder? What the strikethrough item mean? A non-existing directory? If that is true, how can you list exhaustively non-existing things?
– Rafael Eyng
Feb 21 '15 at 0:31
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How do I open the SearchView programmatically?
...ode will be executed when UI thread will be available for execution. Which means if you are using this workaround you can notice small delay between SearchView expanding
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What is the difference between a pseudo-class and a pseudo-element in CSS?
...-class while a user interacts with the document.
Source
What does this mean?
The important nature of pseudo-classes is stated in the very first sentence: "the pseudo-class concept [...] permit selection". It enables the author of an stylesheet to differ between elements based on information tha...
What is the difference between a Docker image and a container?
...cause it's adding up the sizes of all the distinct underlying layers. This means that the sum of all the values in that column is probably much larger than the disk space used by all of those images.
The value in the REPOSITORY column comes from the -t flag of the docker build command, or from docke...
What is the difference between connection and read timeout for sockets?
...rror will be raised.
2) What does connection timeout set to "infinity" mean? In what situation can it remain in an infinitive loop? and what can trigger that the infinity-loop dies?
It means that the connection attempt can potentially block for ever. There is no infinite loop, but the attempt...
Where did the name `atoi` come from?
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It means Ascii to Integer. Likewise, you can have atol for Ascii to Long, atof for Ascii to Float, etc.
A Google search for 'atoi "ascii to integer"' confirms this on several pages.
I'm having trouble finding any official sou...
How to debug Google Apps Script (aka where does Logger.log log to?)
...d the event argument is not available in the Script Editor, it effectively means that the developers of these types of scripts have no real-time way of accessing the logs.
– Jeff
Feb 12 '14 at 15:32
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