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MySQL pagination without double-querying?
I was wondering if there was a way to get the number of results from a MySQL query, and at the same time limit the results.
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Go: panic: runtime error: invalid memory address or nil pointer dereference
...ording to the docs for func (*Client) Do:
"An error is returned if caused by client policy (such as CheckRedirect), or if there was an HTTP protocol error. A non-2xx response doesn't cause an error.
When err is nil, resp always contains a non-nil resp.Body."
Then looking at this code:
res, err := ...
Detect if a page has a vertical scrollbar?
...if the current page/window (not a particular element) has a vertical scrollbar.
13 Answers
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Why are there no ++ and -- operators in Python?
...
It's not because it doesn't make sense; it makes perfect sense to define "x++" as "x += 1, evaluating to the previous binding of x".
If you want to know the original reason, you'll have to either wade through old Python mailing lists...
Foreach loop, determine which is the last iteration of the loop
...tem
}
else
{
// do something different with every item but the last
}
}
Though you'd probably need to write a custom comparer to ensure that you could tell that the item was the same as the item returned by Last().
This approach should be used with caution as Last may well...
How to clear the canvas for redrawing
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sdgfsdh
20.5k1313 gold badges7171 silver badges150150 bronze badges
answered Jan 26 '10 at 20:52
Pentium10Pentium10
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Set background color of WPF Textbox in C# code
How can I change the background and foreground colors of a WPF Textbox programmatically in C#?
6 Answers
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Android: how to handle button click
...computational functionality (Java Class Files). It also makes for easier debugging. It is actually a lot easier to read this way and think about Android imo.
Question 2:
I believe the two mainly used are #2 and #3. I will use a Button clickButton as an example.
2
is in the form of an anonymous class...
Media query to detect if device is touchscreen
...odernizr and using its media query features.
if (Modernizr.touch){
// bind to touchstart, touchmove, etc and watch `event.streamId`
} else {
// bind to normal click, mousemove, etc
}
However, using CSS, there are pseudo class like, for example in Firefox. You can use :-moz-system-metric(to...
How accurately should I store latitude and longitude?
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klaussner
2,31422 gold badges2222 silver badges3333 bronze badges
answered Nov 26 '12 at 19:02
NoushadNoushad
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