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Get first day of week in PHP?
...HP version used: 3v4l.org/Z3k4E @LewisBuckley's solution is consistent for all versions: 3v4l.org/Eeh9c
– Chris Baker
Jun 25 '14 at 14:45
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How to send emails from my Android application?
... ex) {
Toast.makeText(MyActivity.this, "There are no email clients installed.", Toast.LENGTH_SHORT).show();
}
Otherwise you'll have to write your own client.
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Question mark and colon in JavaScript
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It is called the Conditional Operator (which is a ternary operator).
It has the form of: condition ? value-if-true : value-if-false
Think of the ? as "then" and : as "else".
Your code is equivalent to
if (max != 0)
hsb.s = 255 ...
Sort a Map by values
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totally ripped this, but credited @CarterPage in the comments (it'll be in an open source project anyway). thanks so much.
– Nathan Beach
Sep 2 '15 at 3:07
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How much is too much with C++11 auto keyword?
...it` has an iterator type
// (don't really care which one in this context)
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Can CSS detect the number of children an element has?
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No. Well, not really. There are a couple of selectors that can get you somewhat close, but probably won't work in your example and don't have the best browser compatibility.
:only-child
The :only-child is one of the few true counting sele...
How to stop an animation (cancel() does not work)
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Call clearAnimation() on whichever View you called startAnimation().
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How can I find the length of a number?
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This solution would not work with large number or small number that has more than 20 digits. eg. 1.2e+22 toString().length outputs 7
– CherylG
Oct 18 '16 at 0:52
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Convert hex to binary
...gits and leading zeroes).
Short answer:
The new f-strings in Python 3.6 allow you to do this using very terse syntax:
>>> f'{0xABC123EFFF:0>42b}'
'001010101111000001001000111110111111111111'
or to break that up with the semantics:
>>> number, pad, rjust, size, kind = 0xAB...
Fastest way to reset every value of std::vector to 0
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Looking at the assembly output, gcc actually unrolls this loop into using the mmx registers to dump in 16 bytes at a time until it gets close to the end. I'd say that's pretty fast. The memset version jumps to memset, which I'm guessing is about as fast. I'd use yo...