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MongoDB or CouchDB - fit for production? [closed]
...mongo in production for over a year now. They are using it for everything from users and blog posts, to every image on the site.
shopwiki is using it for a few things including real time analytics and a caching layer. They are doing over 1000 writes per second to a fairly large database.
If you g...
How to pass parameters to anonymous class?
...classes can't have constructors.
However, classes can reference variables from containing scopes. For an anonymous class these can be instance variables from the containing class(es) or local variables that are marked final.
edit: As Peter pointed out, you can also pass parameters to the construc...
Why does auto a=1; compile in C?
...so the same as int a in this example.
This keyword is actually a leftover from C's predecessor B, where there were no base types: everything was int, pointer to int, array of int.(*) Declarations would be either auto or extrn [sic]. C inherited the "everything is int" as a default rule, so you coul...
I want to remove double quotes from a String
...(str.length -1). substr expects 2 arguments, where the first is the offset from which the substring starts, the second is its length. Since we don't want the last char, anymore than we want the first, that length is str.length - 2. Easy-peazy.
Tips:
More on lookaround assertions can be found here
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Returning first x items from array
I want to return first 5 items from array. How can I do this?
5 Answers
5
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Why can't strings be mutable in Java and .NET?
...,
immutable objects can be shared freely
[...]
Other small points from the same chapter:
Not only can you share immutable objects, but you can share their internals.
[...]
Immutable objects make great building blocks for other objects, whether mutable or immutable.
[...]
...
Why aren't superclass __init__ methods automatically invoked?
...__new__". As you yourself note, __new__ behaves nothing like a constructor from other languages. __init__ is in fact very similar (it is called during the creation of a new object, after that object is allocated, to set member variables on the new object), and is almost always the place to implement...
Why fragments, and when to use fragments instead of activities?
...le by using includes). However; fragments are wired in to the Android API, from HoneyComb, and up. Let me elaborate;
The ActionBar. If you want tabs up there to navigate your app, you quickly see that ActionBar.TabListener interface gives you a FragmentTransaction as an input argument to the onTab...
What does void* mean and how to use it?
...ng);
The array expressions iArr, dArr, and lArr are implicitly converted from array types to pointer types in the function call, and each is implicitly converted from "pointer to int/double/long" to "pointer to void".
The comparison functions would look something like:
int compareInt(const void ...
Laravel blank white screen
...rate application key with the following command in terminal/command-prompt from Laravel root:
php artisan key:generate
This will generate the encryption key and update the value of APP_KEY in .env file
This should solve the problem.
If the problem still exists, then update config/app.php ...