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How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method
...re performing a bitwise logical operation on an integer (which, for all I know, may be stored as two's complement or something like that...)
Two's complement explains how to represent a number in binary. I think I was right.
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How do I query between two dates using MySQL?
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I did know this but now has issue with UPDATE. I m trying to use BETWEEN for UPDATE should it work the same way?
– Ingus
Jun 2 '17 at 9:55
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Writing a new line to file in PHP (line feed)
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now my code uses both " and ' and it bothers me
– Mr PizzaGuy
Jan 12 at 16:59
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How to get the browser language using JavaScript [duplicate]
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Update: There is now (2020) an experimental feature supported by all modern browsers that returns an array of language preference: navigator.languages //["en-US", "zh-CN", "ja-JP"] This should work on at least 95% of browsers in 2020.
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How to check postgres user and password? [closed]
A friend of mine done this config on my mac. But I don't know the username and password he had chosen.
2 Answers
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How to copy JavaScript object to new variable NOT by reference? [duplicate]
...ATE 2017: I should mention, since this is a popular answer, that there are now better ways to achieve this using newer versions of javascript:
In ES6 or TypeScript (2.1+):
var shallowCopy = { ...oldObject };
var shallowCopyWithExtraProp = { ...oldObject, extraProp: "abc" };
Note that if extraPr...
Telnet is not recognized as internal or external command [closed]
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You can try using Putty (freeware). It is mainly known as a SSH client, but you can use for Telnet login as well
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How to sort an array of integers correctly
Trying to get the highest and lowest value from an array that I know will contain only integers seems to be harder than I thought.
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In a django model custom save() method, how should you identify a new object?
...ble, but named that way to avoid conflicts, checking self._state.adding is now the preferable way to check.
self.pk is None:
returns True within a new Model object, unless the object has a UUIDField as its primary_key.
The corner case you might have to worry about is whether there are uniquene...
How to change Navigation Bar color in iOS 7?
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@Rob85 I am not in front of Xcode right now, but when Xcode 7 (with iOS 9) was released I verified that these instructions were still up-to-date. Make sure that the Navigation Bar is selected, the black style should be in the attributes inspector of the Navigation ...