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Django filter queryset __in for *every* item in list
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125
Summary:
One option is, as suggested by jpic and sgallen in the comments, to add .filter() for...
JavaScript moving element in the DOM
...with jQuery
$('#div1').insertAfter('#div3');
$('#div3').insertBefore('#div2');
If you want to do it repeatedly, you'll need to use different selectors since the divs will retain their ids as they are moved around.
$(function() {
setInterval( function() {
$('div:first').insertAfter($(...
How to recursively list all the files in a directory in C#?
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22 Answers
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Linq to EntityFramework DateTime
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202
When using LINQ to Entity Framework, your predicates inside the Where clause get translated to...
How to create a new (and empty!) “root” branch?
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230
Use the --orphan when creating the branch:
git checkout --orphan YourBranchName
This will c...
Is there a Null OutputStream in Java?
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25
Since Java 11, there is a static utility that does exactly what you need, a static factory meth...
How can I format my grep output to show line numbers at the end of the line, and also the hit count?
... to be used if case matching is not necessary
$ grep -in null myfile.txt
2:example two null,
4:example four null,
Combine with awk to print out the line number after the match:
$ grep -in null myfile.txt | awk -F: '{print $2" - Line number : "$1}'
example two null, - Line number : 2
example fo...
Check OS version in Swift?
... running at least a specific version, you can also use the following Swift 2 feature which works on iOS and OS X:
if #available(iOS 9.0, *) {
// use the feature only available in iOS 9
// for ex. UIStackView
} else {
// or use some work around
}
BUT it is not recommended to check the ...
What do people find difficult about C pointers? [closed]
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29 Answers
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