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What is a sealed trait?
...bed in 'Programming in Scala', but sealed traits are not.
Where can I find more information about a sealed trait?
6 Answers...
How to check if object property exists with a variable holding the property name?
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Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
... empty collections tend to just throw exceptions. But it's mathematically more elegant (and would be more elegant if collections did this) if the identity element is returned when the collection is empty. In mathematics "throw an exception" doesn't exist.
– samthebest
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Spring @PostConstruct vs. init-method attribute
...nstruct is called, then the afterPropertiesSet and then init-method.
For more info you can check Spring's reference documentation.
Before JSR 250 specs , usage of init-method in xml was preferred way , as it decouples java classes (beans) from any spring specific classes/annotations.So if you are...
How can I get sin, cos, and tan to use degrees instead of radians?
... return angles, they take angles as input. It seems to me that it would be more useful to you to have a function that converts a degree input to radians, like this:
function toRadians (angle) {
return angle * (Math.PI / 180);
}
which you could use to do something like tan(toRadians(45)).
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Node.js app can't run on port 80 even though there's no other process blocking the port
...any files, they'd be inaccesible for other users, making you use sudo even more.
– jesusiniesta
Oct 2 '17 at 10:31
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A CORS POST request works from plain JavaScript, but why not with jQuery?
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UPDATE: As TimK pointed out, this isn't needed with jquery 1.5.2 any more. But if you want to add custom headers or allow the use of credentials (username, password, or cookies, etc), read on.
I think I found the answer! (4 hours and a lot of cursing later)
//This does not work!!
Access-Co...
Creating Unicode character from its number
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Define css class in django Forms
...! I had developed some filters to do these stuff, but this project is much more powerful. Thanks!
– msbrogli
Jun 8 '12 at 17:19
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How to configure port for a Spring Boot application
...ty through the command line arguments (String... args in the main method). Moreover, if you run with java -Dserver.port=XXXX -jar <path/to/my/jar> --server.port=YYYY, YYYY takes precedence over XXXX, this is why Spring Boot Externalized Configuration is so charming.
– tan...