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A gentle tutorial to Emacs/Swank/Paredit for Clojure

...mgmt for finding files, searching, etc helm – incremental completion and selection narrowing framework (or swiper) Other Resources If you’re looking for a setup that already has done most/all of this work for you, a couple options are: prelude spacemacs ...
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What is the difference between “JPG” / “JPEG” / “PNG” / “BMP” / “GIF” / “TIFF” Image?

...ow demonstrate the noticeable artifacting of lossy compression algorithms; select the thumbnail image to view the full size version. Each format is different as described below: JPEG JPEG (Joint Photographic Experts Group) files are (in most cases) a lossy format; the DOS filename extension is JPG...
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std::function vs template

... in cases with binding, there's a chunk of code which does the adaptation, selected by a code ptr in the function obj, and which picks up data (bound parms) from the function obj (d) the 'bound' function may be inlined into that adaptor, if the compiler can see it. – greggo ...
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How do I list all files of a directory?

...'work.txt', '3ebooks.txt', 'documents'] glob I found glob easier to select the file of the same type or with something in common. Look at the following example: import glob txtfiles = [] for file in glob.glob("*.txt"): txtfiles.append(file) glob with list comprehension import glo...
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REST API 404: Bad URI, or Missing Resource?

...s no data which align to the query conditions (for example zero record was selected). When there was no data to sent back to the client I prepared an perfect JSON message with internal error code, etc. to inform the client about the reason of the "Not Found" and it was sent back to the client with ...
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How to color System.out.println output? [duplicate]

...7 | white | | 39 | 49 | default | +~~~~~~+~~~~~~+~~~~~~~~~~~+ Select Graphic Rendition (SGR) SGR just allows you to change the text. Many of these do not work in certain terminals, so use these sparingly in production-level projects. However, they can be useful for making program outpu...
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What does “dereferencing” a pointer mean?

...he pointer may be relative to some specific memory area, which the CPU may select based on CPU "segment" registers or some manner of segment id encoded in the bit-pattern, and/or looking in different places depending on the machine code instructions using the address. For example, an int* properly ...
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Retrieve a Fragment from a ViewPager

... If all you need to do is get the currently selected Fragment, this is all you need - the method setPrimaryItem is set on attach and also on every updated to the internal set of the Fragment as the current item. – Graeme Jul 17 '1...
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Many-to-many relationship with the same model in rails?

...ails generates in the log file. You'll find something like the following: SELECT * FROM "posts" INNER JOIN "post_connections" ON "posts".id = "post_connections".post_b_id WHERE ("post_connections".post_a_id = 1 ) To make the association bi-directional, we'd have to find a way to make Rails OR the...
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What is a magic number, and why is it bad? [closed]

...Now, what you do is you have the 50 in different places - your SQL script (SELECT TOP 50 * FROM orders), your Website (Your Last 50 Orders), your order login (for (i = 0; i < 50; i++)) and possibly many other places. Now, what happens when someone decides to change 50 to 25? or 75? or 153? You n...