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Map and Reduce in .NET
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Why oh why don't they just call it Reduce instead of Aggregate... MS just likes to annoy programmers
– John Henckel
Mar 28 '19 at 20:27
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jQuery - Create hidden form element on the fly
What is the simplest way to dynamically create a hidden input form field using jQuery?
6 Answers
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spring scoped proxy bean
...only be injected (once!).
This means that the 'userManager' will (conceptually) only ever operate on the exact same 'userPreferences' object, that is the one that it was originally injected with.
This is not what you want when you inject a HTTP Session-scoped bean as a dependency into a collaborat...
How to limit depth for recursive file list?
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Make use of find's options
There is actually no exec of /bin/ls needed;
Find has an option that does just that:
find . -maxdepth 2 -type d -ls
To see only the one level of subdirectories you are interested in, add -mindepth to the same level as -maxdepth:
find . -...
Filter output in logcat by tagname
...r logcat output from a real device (not an emulator) by tag name but I get all the messages which is quite a spam. I just want to read messages from browser which should be something like "browser: " or "webkit: " , but it doesn't work...
Here it is what I get:
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Convert a string to regular expression ruby
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This method will safely escape all characters with special meaning:
/#{Regexp.quote(your_string)}/
For example, . will be escaped, since it's otherwise interpreted as 'any character'.
Remember to use a single-quoted string unless you want regular strin...
Creating an array of objects in Java
...is:
A a1;
A a2;
A a3;
A a4;
Now you couldn't do a1.someMethod() without allocating a1 like this:
a1 = new A();
Similarly, with the array you need to do this:
a[0] = new A();
...before using it.
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How to select only the first rows for each unique value of a column
...e 2nd technique or Ben Thul's technique. I answered what you asked specifically, with pointers on how to solve more generally.
– gbn
Jan 12 '11 at 4:53
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Microsoft Azure: How to create sub directory in a blob container
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To add on to what Egon said, simply create your blob called "folder/1.txt", and it will work. No need to create a directory.
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How to conditionally push an item in an observable array?
...rray exposes an indexOf function (wrapper to ko.utils.arrayIndexOf). This allows you to do:
if (myObservableArray.indexOf(itemToAdd) < 0) {
myObservableArray.push(itemToAdd);
}
If the two are not actually a reference to the same object and you want to run custom comparison logic, then you c...