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List Git aliases
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This answer builds upon the answer by johnny. It applies if you're not using git-alias from git-extras.
On Linux, run once:
git config --global alias.alias "! git config --get-regexp ^alias\. | sed -e s/^alias\.// -e s/\ /\ =\ /"
This will create a permanent git alias named ali...
CocoaPods - use specific pod version
.... Of course, this needs to be done from your project's top level folder. If the update does not occur, edit your Podfile.lock file and change the AFNetworking version # to something less than what it is and issue a pod update in the terminal again. This tells CocoaPods that you have a different v...
C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
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};
int main(int argc, char** argv) {
struct foo f={0};
if (f.a->s) {
printf( f.a->s);
}
return 0;
}
你编译一下上面的代码，在VC++和GCC下都会在14行的printf处crash掉你的程序。@Laruence 说这个是个经典的坑，...
How do you round a number to two decimal places in C#?
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You should clarify that MidPointRounding.ToEven IS the default. If you wanted AwayFromZero you would have to use the overload
– Brian Vander Plaats
Feb 23 '09 at 18:25
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Persist javascript variables across pages? [duplicate]
... @AndersonGreen The storage is bound to the actual window/tab. If the window/tab is closed, the data is lost. If you’re looking for a more persistent solution, have a look at CMS’ answer. Techniques like Web storage have a different scope.
– Gumbo
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Validate uniqueness of multiple columns
...ase to insert the same record in table;
each process in parallel validates if there is a record with the same n fields;
validation for each request is passed successfully, and each process creates a record in the table with the same data.
To avoid this kind of behaviour, one should add a unique co...
jQuery Datepicker with text input that doesn't allow user input
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As per WC3 HTML specification, its only <input readonly> or <input readonly="readonly"> without true/false w3.org/TR/html5/forms.html#the-readonly-attribute
– Ankit Sharma
Sep 21 '16 at 14:13
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Embed image in a element
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I preffer to use a button. if I find no answer I'll do it. thanks
– Amit Hagin
Jan 1 '12 at 20:52
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error: command 'gcc' failed with exit status 1 while installing eventlet
...dev
For eventlet you might also need the libevent libraries installed so if you get an error talking about that you can install libevent with:
sudo apt-get install libevent-dev
share
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improve t...
Get index of selected option with jQuery
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I have a slightly different solution based on the answer by user167517. In my function I'm using a variable for the id of the select box I'm targeting.
var vOptionSelect = "#productcodeSelect1";
The index is returned with:
$(vOptionSelect)....