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What is the result of % in Python?
What does the % in a calculation? I can't seem to work out what it does.
19 Answers
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querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
...is more useful when you want to use more complex selectors.
e.g. All list items descended from an element that is a member of the foo class: .foo li
document.querySelector("#view:_id1:inputText1") it doesn't work. But writing document.getElementById("view:_id1:inputText1") works. Any ideas why?...
Why use 'virtual' for class properties in Entity Framework model definitions?
... http://weblogs.asp.net/scottgu/archive/2010/07/16/code-first-development-with-entity-framework-4.aspx
7 Answers
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Purpose of Unions in C and C++
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The purpose of unions is rather obvious, but for some reason people miss it quite often.
The purpose of union is to save memory by using the same memory region for storing different objects at different times. That's it.
It is like a room in a hotel. Different people live in it for non-overla...
Create tap-able “links” in the NSAttributedString of a UILabel?
...eAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:@"String with a link" attributes:nil];
NSRange linkRange = NSMakeRange(14, 4); // for the word "link" in the string above
NSDictionary *linkAttributes = @{ NSForegroundColorAttributeName : [UIColor colorWithRed:...
Struct like objects in Java
Is it completely against the Java way to create struct like objects?
20 Answers
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Download a file by jQuery.Ajax
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2019 modern browsers update
This is the approach I'd now recommend with a few caveats:
A relatively modern browser is required
If the file is expected to be very large you should likely do something similar to the original approach (iframe and cookie) because some of the below operations co...
Merge a Branch into Trunk
I'm facing a peculiar problem with SVN merge . I want to merge from a dev branch to trunk.
We have multiple dev branches cut off the trunk at the same time.
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Count number of occurrences of a pattern in a file (even on same line)
... line (a{foo}barfoobar) the searching stops. Only one line was checked and it matched, so the output is 1. Actually -o is ignored here and you could just use grep -c instead.
2.
$ echo afoobarfoobar | grep -o foo
foo
foo
$ echo afoobarfoobar | grep -o foo | wc -l
2
Two matches are found in the ...
How to create a self-signed certificate with OpenSSL
...embedded Linux device. I have tried to generate a self-signed certificate with these steps:
15 Answers
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