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Number of processors/cores in command line
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If you want to do this so it works on linux and OS X, you can do:
CORES=$(grep -c ^processor /proc/cpuinfo 2>/dev/null || sysctl -n hw.ncpu)
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nginx upload client_max_body_size issue
... until I decide to restrict the maximum size of files I want uploaded.
To do that, I set the nginx client_max_body_size to 1m (1MB) and expect a HTTP 413 (Request Entity Too Large) status in response when that rule breaks.
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IntelliJ IDEA way of editing multiple lines
I've seen this done in TextMate and I was wondering if there's a way to do it in IDEA.
20 Answers
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Pretty-Print JSON in Java
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GSON can do this in a nice way:
Gson gson = new GsonBuilder().setPrettyPrinting().create();
JsonParser jp = new JsonParser();
JsonElement je = jp.parse(uglyJSONString);
String prettyJsonString = gson.toJson(je);
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MySQL error 2006: mysql server has gone away
...ess that is intermittent then its better to release your connection so you don't used up all the connections. Rebuilding the connection is generally cheap. +1
– Yzmir Ramirez
Nov 3 '11 at 0:48
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How to make URL/Phone-clickable UILabel?
... UIDataDetectorTypes.All;
This will detect links automatically.
See the documentation for details.
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Difference between console.log() and console.debug()?
...og() added for improved compatibility
https://developer.mozilla.org/en-US/docs/Web/API/console
https://developers.google.com/chrome-developer-tools/docs/console-api#consoledebugobject_object
https://msdn.microsoft.com/en-us/library/ie/hh772183(v=vs.85).aspx
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Java “lambda expressions not supported at this language level”
...argetCompatibility JavaVersion.VERSION_1_8 } }
– BaDo
Sep 25 '15 at 2:30
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How to delete images from a private docker registry?
I run a private docker registry, and I want to delete all images but the latest from a repository. I don't want to delete the entire repository, just some of the images inside it. The API docs don't mention a way to do this, but surely it's possible?
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How can I remove the decimal part from JavaScript number?
...ath.trunc() (truncate fractional part, also see below)
Math.floor() (round down)
Math.ceil() (round up)
Math.round() (round to nearest integer)
...dependent on how you wanted to remove the decimal.
Math.trunc() isn't supported on all platforms yet (namely IE), but you could easily use a polyfill...