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How can I stop .gitignore from appearing in the list of untracked files?

...on. So, add it to your repository, it should not be gitignored. If you really want you can add .gitignore to the .gitignore file if you don't want it to be committed. However, in that case it's probably better to add the ignores to .git/info/exclude, a special checkout-local file that works just l...
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How to format current time using a yyyyMMddHHmmss format?

... acturally the golang format is very strange. why not use the yyyymmddHHiiss style , but use the ""2006/01/02/15/04/05", I have not get it the real reason – Kewin May 10 '16 at 14:32 ...
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Django: Display Choice Value

...ing your information via JSON (for instance in a pagination scenario)? Ideally without the overhead of instantiating the Models one by one and calling get_field_display(). – DylanYoung Mar 23 '17 at 17:34 ...
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What does the “@” symbol do in Powershell?

... PowerShell will actually treat any comma-separated list as an array: "server1","server2" So the @ is optional in those cases. However, for associative arrays, the @ is required: @{"Key"="Value";"Key2"="Value2"} Officially, @ is the "array ...
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Golang production web application configuration

... timeout server 50000 frontend http bind :80 acl is_stats hdr(host) -i hastats.myapp.com use_backend stats if is_stats default_backend myapp capture request header Host len 20 capture request h...
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Base64 length calculation?

... I explained all this in the answer above: (i) each output char represents 6 bits of input, (ii) 4 output chars therefore represent 4 * 6 = 24 bits, (iii) 24 bits is 3 bytes, (iv) 3 bytes of input therefore result in 4 chars of output, (...
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Insert line after first match using sed

... Note the standard sed syntax (as in POSIX, so supported by all conforming sed implementations around (GNU, OS/X, BSD, Solaris...)): sed '/CLIENTSCRIPT=/a\ CLIENTSCRIPT2="hello"' file Or on one line: sed -e '/CLIENTSCRIPT=/a\' -e 'CLIENTSCRIPT2="hello"' file (-expressions (and t...
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Correct approach to global logging in Golang

...d a pointer to that log.Logger? log.New returns a *Logger which is usually an indication that you should pass the object around as a pointer. Passing it as value would create a copy of the struct (i.e. a copy of the Logger) and then multiple goroutines might write to the same io.Writer concurre...
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What is “entropy and information gain”?

...: female | | ends-vowel=0: male length>=7 | length=5: male basically each node represent a test performed on a single attribute, and we go left or right depending on the result of the test. We keep traversing the tree until we reach a leaf node which contains the class prediction (m or f)...
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Convert a binary NodeJS Buffer to JavaScript ArrayBuffer

... = new Uint32Array(b.buffer, b.byteOffset, b.byteLength / Uint32Array.BYTES_PER_ELEMENT); No dependencies, moderate speed, any version of Node.js Use Martin Thomson's answer, which runs in O(n) time. (See also my replies to comments on his answer about non-optimizations. Using a DataView is slo...