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Add days to JavaScript Date

... for Date: var result = new Date(date);, see http://www.w3schools.com/js/js_dates.asp. Even if this usually work, sometimes can lead to wrong results because of conversion to string and vice versa. It should be var result = new Date(date.getTime()); – Marcin No...
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How to provide different Android app icons for different gradle buildTypes?

..., if your project layout is as follows, and your launcher icon is called ic_launcher.png: [Project Root] -[Module] -src -main -res -drawable-* -ic_launcher.png Then to add a separate icon for the debug build type, you add: [Project Root] -[Module] ...
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In git, what is the difference between merge --squash and rebase?

...--commit with --squash Previously, when --squash was supplied, 'option_commit' was silently dropped. This could have been surprising to a user who tried to override the no-commit behavior of squash using --commit explicitly. git/git builtin/merge.c#cmd_merge() now includes: if (option_co...
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How do I disable the security certificate check in Python requests

...import requests from urllib3.exceptions import InsecureRequestWarning old_merge_environment_settings = requests.Session.merge_environment_settings @contextlib.contextmanager def no_ssl_verification(): opened_adapters = set() def merge_environment_settings(self, url, proxies, stream, veri...
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Is there an easy way to add a border to the top and bottom of an Android View?

...move the solid if you don't want a fill. The set background="@drawable/your_shape_drawable" on your layout/view. Option 2: Background View Here's a little trick I've used in a RelativeLayout. Basically you have a black square under the view you want to give a border, and then give that view some p...
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Maximum Length of Command Line String

... @LordTorgamus, The 32k limit is due to the UNICODE_STRING structure (ushort length). According to Raymond Chen's article on the subject CMD limits lines to 8192 characters (I'd assume the carrage return is the final character) and ShellExecuteEx limits to "INTERNET_MAX_URL_L...
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Different floating point result with optimization enabled - compiler bug?

...e all pertinent intermediate computations into variables. In x86_64 builds compilers use SSE registers for float and double by default, so that no extended precision is used and this issue doesn't occur. gcc compiler option -mfpmath controls that. ...
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Build vs new in Rails 3

... You're misreading the docs slightly. some_firm.client.new is creating a new Client object from the clients collection, and so it can automatically set the firm_id to some_firm.id, whereas the docs are calling Client.new which has no knowledge of any Firm's id at all...
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scala vs java, performance and memory? [closed]

...he most compact way to do the same thing is: val bigEnough = array.filter(_.length > 2).flatMap(mapping.get) Easy! But, unless you're fairly familiar with how the collections work, what you might not realize is that this way of doing this created an extra intermediate array (with filter), and...
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Is < faster than

...(a &lt;=901) cmpl $901, -4(%rbp) jg .L3 My example if is from GCC on x86_64 platform on Linux. Compiler writers are pretty smart people, and they think of these things and many others most of us take for granted. I noticed that if it is not a constant, then the same machine code is generated in...