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Why is extending native objects a bad practice?
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I prefer someError.stringify() over errors.stringify(someError). It's straightforward and perfectly suits the concept of js. I'm doing something that's specifically bound to a certain ErrorObject.
– buschtoens
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Creating a copy of a database in PostgreSQL [closed]
...TABASE newdb WITH TEMPLATE originaldb OWNER dbuser;
Still, you may get:
ERROR: source database "originaldb" is being accessed by other users
To disconnect all other users from the database, you can use this query:
SELECT pg_terminate_backend(pg_stat_activity.pid) FROM pg_stat_activity
WHERE ...
How do C++ class members get initialized if I don't do it explicitly?
...e object's class does not have a default constructor, it will be a compile error if you do not explicitly initialize it.
For primitive types (pointers, ints, etc), they are not initialized -- they contain whatever arbitrary junk happened to be at that memory location previously.
For references (e....
Better to 'try' something and catch the exception or test if it's possible first to avoid an excepti
...ind an element in a long list by:
try:
x = my_list[index]
except IndexError:
x = 'NO_ABC'
the try, except is the best option when the index is probably in the list and the IndexError is usually not raised. This way you avoid the need for an extra lookup by if index < len(my_list).
Pyt...
How do I manage MongoDB connections in a Node.js web application?
....then(() => bootMyApplication())
.catch((e) => {
console.error(e);
// Always hard exit on a database connection error
process.exit(1);
});
When in flight your app can simply call get() when it needs a DB connection.
const db = require('./myAwesomeDbModule');
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Duplicate symbols for architecture x86_64 under Xcode
...estion with above title but have not found the right answer yet. I got the error:
51 Answers
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IntelliJ gives Fatal Error: Unable to find package java.lang in classpath or bootclasspath
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This error happend to me after i've updated my JDK version to jdk1.8.0_161 -
But the project's sdk was still pointing to the old jdk 1.8.0_131
(Seems that updgrading java causing the previous version to be wiped).
Do this:
In...
Help with C# generics error - “The type 'T' must be a non-nullable value type”
... of that function -- it's the Nullable class that is the root cause of the error, so this is actually more helpful that if the compiler just pointed to your function and said "this ain't right, fix it!" (Imagine if CoalesceMax used several generics, and violated the constraint on only one of them - ...
WebService Client Generation Error with JDK8
...was the way to create a web service client. But it resulted in an AssertionError, saying:
23 Answers
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IIS7 deployment - duplicate 'system.web.extensions/scripting/scriptResourceHandler' section
... pool in IIS7 having the framework section set to 4.0, I get the following error.
15 Answers
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