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Apache Proxy: No protocol handler was valid
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This can happen if you don't have mod_proxy_http enabled
sudo a2enmod proxy_http
For me to get my https based load balancer working, i had to enable the following:
sudo a2enmod ssl
sudo a2enmod proxy
sudo a2enmod proxy_balancer
sudo a2en...
Selecting element by data attribute
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$('*[data-customerID="22"]');
You should be able to omit the *, but if I recall correctly, depending on which jQuery version you’re using, this might give faulty results.
Note that for compatibility with the Selectors API (document.querySelector{,all}), the quotes around the attribute valu...
Linq order by boolean
... I sort of like this more than the built in way. Mainly because even if there is an implied ordering for true/false, it isn't really obvious to anyone who hasn't done it before. So someone that doesn't know looking at code in the future could think it sorts true to false, when really it sorts ...
Overloading member access operators ->, .*
...akes no arguments. The return value is used to perform the member lookup.
If the return value is another object of class type, not a pointer, then the subsequent member lookup is also handled by an operator-> function. This is called the "drill-down behavior." The language chains together the op...
Multiple select statements in Single query
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"Operand should contain 1 column(s)" - only if your merged tables differ in columns count. They should match. 1 column per table in this example.
– Zon
Apr 22 '16 at 10:54
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Adjusting the Xcode iPhone simulator scale and size [duplicate]
...xel Accurate: Resizes your simulator to actual (Physical) device's pixels, if your mac system display screen size (pixel) supports that much high resolution, else this option will remain disabled.
Tip: rotate simulator ( ⌘ + ← or ⌘ + → ), if Pixel Accurate is disabled. It may be enabled (...
How to make div background color transparent in CSS
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@Subir if you need another way, see Jerska's answer. But as said, it seems questionable why you want to avoid opacity in the first place.
– Pekka
Aug 4 '12 at 9:07
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Find all files with name containing string
...-print
It will find all files in the current directory (delete maxdepth 1 if you want it recursive) containing "string" and will print it on the screen.
If you want to avoid file containing ':', you can type:
find . -maxdepth 1 -name "*string*" ! -name "*:*" -print
If you want to use grep (but I...
Why should I use Hamcrest-Matcher and assertThat() instead of traditional assertXXX()-Methods
..."rule" of one assertion per test and blends more easily with BDD-style specifications.
– Nils Wloka
Nov 20 '09 at 14:10
2
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Capturing multiple line output into a Bash variable
...how is what you get from:
echo $RESULT
As noted in the comments, the difference is that (1) the double-quoted version of the variable (echo "$RESULT") preserves internal spacing of the value exactly as it is represented in the variable — newlines, tabs, multiple blanks and all — whereas (2)...