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What is the difference between Java RMI and RPC?
...ed into a server, in RMI you can have references to remote objects and invoke their methods, and also pass and return more remote object references that can be distributed among many JVM instances, so it's much more powerful.
RMI stands out when the need to develop something more complex than a pur...
How to get visitor's location (i.e. country) using geolocation? [duplicate]
...u don't need to locate the user if you only need their country. You can look their IP address up in any IP-to-location service (like maxmind, ipregistry or ip2location). This will be accurate most of the time.
If you really need to get their location, you can get their lat/lng with that method, the...
How to export collection to CSV in MongoDB?
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@karoly-horvath has it right. Fields are required for csv.
According to this bug in the MongoDB issue tracker https://jira.mongodb.org/browse/SERVER-4224 you MUST provide the fields when exporting to a csv. The docs are not c...
Iterate through object properties
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Iterating over properties requires this additional hasOwnProperty check:
for (var prop in obj) {
if (Object.prototype.hasOwnProperty.call(obj, prop)) {
// do stuff
}
}
It's necessary because an object's prototype contains additional properties for the object which are techni...
How do I make a JAR from a .java file?
...build directory and do a
jar cvf YourJar.jar *
For adding manifest check jar command line switches
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What is the difference between Python's list methods append and extend?
... edited Oct 6 '19 at 17:39
Karl Knechtel
47.6k77 gold badges7171 silver badges109109 bronze badges
answered Oct 31 '08 at 6:02
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What's the difference between getRequestURI and getPathInfo methods in HttpServletRequest?
I'm making a simple, very lightweight front-controller. I need to match request paths to different handlers (actions) in order to choose the correct one.
...
Set type for function parameters?
Is there a way to let a javascript function know that a certain parameter is of a certain type?
12 Answers
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How to stop app that node.js express 'npm start'
..., poststop: Run by the npm stop command.
Set one of the above in your package.json, and then use npm stop
npm help npm-stop
You can make this really simple if you set in app.js,
process.title = myApp;
And, then in scripts.json,
"scripts": {
"start": "app.js"
, "stop": "pkill --sig...
Android mock location on device?
How can I mock my location on a physical device (Nexus One)? I know you can do this with the emulator in the Emulator Control panel, but this doesn't work for a physical device.
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