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Define global variable in a JavaScript function
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This isn't what definition and declaration mean in C. Your first line could be either a declaration or a definition (depending on where it is); the second is just an assignment. A declaration just specifies the interpretation of the identifier (ie. myVar is an int); i...
ipython: print complete history (not just current session)
..., datetime.datetime(2018, 2, 13, 19, 8, 30, 40691), None, None, '')
This means that the session 100 started on the 13th of Feb 2018 19:08:30.
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Are Java static initializers thread safe?
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does this mean that the 'final' keyword is redundant in the instance holder in: en.wikipedia.org/wiki/Initialization-on-demand_holder_idiom ?
– spc16670
Jun 27 '16 at 7:13
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How do I pick randomly from an array?
...) == [sample] and my_array.sample == sample to provide explicitly what you mean
– Ekkstein
Dec 5 '17 at 12:22
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Server.UrlEncode vs. HttpUtility.UrlEncode
...ategories: unreserved (legal in a URL); reserved (legal in but has special meaning, so you might want to encode it); and everything else (must always be encoded).
According to the RFC, the reserved characters are: :/?#[]@!$&'()*+,;=
And the unreserved characters are alphanumeric and -._~
The Ver...
Backbone.js get and set nested object attribute
...t cloned. When you set it and retrieve it the reference is the same, which means you can mutate the model without triggering a change.
– niall.campbell
May 1 '18 at 3:33
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Ignore with CSS?
... already answered. And only if you are in control of the HTML that doesn't mean, that you want to change it. But in responsive design it is often desirable to be in control of line breaks (other than the automatic wrap). And in such cases the method of having white space or not controled by CSS (med...
DateTime vs DateTimeOffset
...sentation of instantaneous time (also known as absolute time). By that, I mean a moment in time that is universal for everyone (not accounting for leap seconds, or the relativistic effects of time dilation). Another way to represent instantaneous time is with a DateTime where .Kind is DateTimeKind...
demystify Flask app.secret_key
...wildly) simplified description of the concept. The code in the examples is meant to be illustrative. Many of the steps have been omitted and not all of the functions actually exist. The goal here is to provide an understanding of the general idea, actual implementations will be a bit more involved. ...
Understanding colors on Android (six characters)
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If you provide 6 hex digits, that means RGB (2 hex digits for each value of red, green and blue).
If you provide 8 hex digits, it's an ARGB (2 hex digits for each value of alpha, red, green and blue respectively).
So by removing the final 55 you're changing...