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What is resource-ref in web.xml used for?
...ation file.
So here's what happens: let's say you want to lookup the java:comp/env/jdbc/primaryDB name. The container finds that web.xml has a <resource-ref> element for jdbc/primaryDB, so it will look into the container-specific configuration, that contains something similar to the following...
What is this: [Ljava.lang.Object;?
...e are also Arrays.equals and Arrays.deepEquals that perform array equality comparison by their elements, among many other array-related utility methods.
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Is there a way to specify an “empty” C# lambda expression?
... require the verbose Func<Task> doNothing = async() => await Task.CompletedTask;?
– Patrick Szalapski
Apr 8 at 20:21
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symbolic link: find all files that link to this file
...d / -lname foo.txt
or
find . -lname \*foo.txt # ignore leading pathname components
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How get integer value from a enum in Rails?
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Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
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How can I determine the type of an HTML element in JavaScript?
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I recommend doing it like this: if(elt.nodeName.toLowerCase() === "div") { ... } This way, if for some reason it is no longer returned in uppercase letters (lowercase or mixed), you won't have to change it and this code will st...
What is difference between sjlj vs dwarf vs seh?
I can't find enough information to decide which compiler should I use to compile my project. There are several programs on different computers simulating a process. On Linux, I'm using GCC. Everything is great. I can optimize code, it compiles fast and uses not-so-much memory.
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