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Remove unused imports in Android Studio
I recently started Android Studio IDE to make my android apps. I find shortkey to remove unused import in Android Studio is not working ( Ctrl + Shift + O )
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Architecture for merging multiple user accounts together
...formation - it could even be a single field - just a primary key. (For my application, I don't care about the user's email, name, or birth date - I just want to know they're the person who has been logging into this account all along.)
The third-party identities contain information relevant only t...
Node.js on multi-core machines
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@Serob_b - well, yes. Running a Node.js app on multiple machines is very common. There's no library needed to do so. You just run your code on multiple machines and distribute load between them. Architecting your software so that it scales (ie, it stores state in s...
What is the __del__ method, How to call it?
...__ is a finalizer. It is called when an object is garbage collected which happens at some point after all references to the object have been deleted.
In a simple case this could be right after you say del x or, if x is a local variable, after the function ends. In particular, unless there are circ...
Preferred method to store PHP arrays (json_encode vs serialize)
... occasionally come across the need to convert it to JSON for use in my web app but the vast majority of the time I will be using the array directly in PHP.
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Java Programming - Where should SQL statements be stored? [closed]
Where should an JDBC-compliant application store its SQL statements and why?
15 Answers
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Measure time in Linux - time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?
...s indeed 1 µs. This clock wraps around once it tops out (this typically happens after ~2^32 ticks, which is not very long for a 1 MHz clock). man clock says that since glibc 2.18 it is implemented with clock_gettime(CLOCK_PROCESS_CPUTIME_ID, ...) in Linux.
clock_gettime(CLOCK_MONOTONIC, ...) prov...
System.currentTimeMillis vs System.nanoTime
... values change. Differences
in successive calls that span greater
than approximately 292 years (263
nanoseconds) will not accurately
compute elapsed time due to numerical
overflow.
For example, to measure how long some code takes to execute:
long startTime = System.nanoTime();
// .....
abort, terminate or exit?
...eturn from there. This means that you are guaranteed that stack unwinding happens correctly and all destructors are called. In other words:
int main() {
try {
// your stuff
}
catch( ... ) {
return 1; // or whatever
}
}
...
Mongoose — Force collection name
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your model name : userInfo.js
in express route file or app.js
var mongoose = require('mongoose');
mongoose.connect('mongodb://localhost/testdb');
then in your userInfo.js
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var UserInfo = new Schema({
username :...