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javascript function leading bang ! syntax
...a large block of code will expect a self-invocation, the way we are conditioned already to expect the same when we see (function. Except that we will lose those annoying parentheses. I would expect that's the reason, as opposed to any savings in speed or character count.
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git command to move a folder inside another
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One of the nicest things about git is that you don't need to track file renames explicitly. Git will figure it out by comparing the contents of the files.
So, in your case, don't work so hard:
$ mkdir include
$ mv common in...
How to use XPath contains() here?
...his query will give you the elements that have a class of featureList with one or more li children that contain the text, 'Model'.
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What is the performance cost of having a virtual method in a C++ class?
Having at least one virtual method in a C++ class (or any of its parent classes) means that the class will have a virtual table, and every instance will have a virtual pointer.
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How to check if a specific key is present in a hash or not?
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While Hash#has_key? gets the job done, as Matz notes here, it has been deprecated in favour of Hash#key?.
hash.key?(some_key)
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How to create a custom exception type in Java? [duplicate]
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(1) You should make your new exception a public one, so that methods calling your method may catch this new exception and do something with it (if you mean this new exception to be a checked exception, see my edit. (2) Make the constructors public, no need to hide them. (3...
Replacing H1 text with a logo image: best method for SEO and accessibility?
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I do it mostly like the one above, but for accessibility reasons, I need to support the possibility of images being disabled in the browser. So, rather than indent the text from the link off the page, I cover it by absolutely positioning the <spa...
What's the difference between a single precision and double precision floating point operation?
...ght.
The first bit is the sign bit, S,
the next eight bits are the exponent bits, 'E', and
the final 23 bits are the fraction 'F':
S EEEEEEEE FFFFFFFFFFFFFFFFFFFFFFF
0 1 8 9 31
The value V represented by the word may be determined as follows:
If E=255 and F is non...
Search All Fields In All Tables For A Specific Value (Oracle)
...ure out what query it is using to obtain it?
Anyway, diciu's answer gives one method of generating SQL queries to check every column of every table for the value. You can also do similar stuff entirely in one SQL session using a PL/SQL block and dynamic SQL. Here's some hastily-written code for t...
Recursively look for files with a specific extension
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One little correction: use '*.in' or \*.in instead of "*.in" because double quotes don't prevent shell expansion. I.e. your script will not work properly if there's a file with .in extension in the current directory.
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