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Replace multiple strings with multiple other strings
...r (as a string) is the 2nd parameter, n, to the lambda function.
The +n-1 converts the string to the number then 1 is subtracted to index the pets array.
The %number is then replaced with the string at the array index.
The /g causes the lambda function to be called repeatedly with each number whi...
What's the best way to store a group of constants that my program uses? [closed]
I have various constants that my program uses... string 's, int 's, double 's, etc... What is the best way to store them? I don't think I want an Enum , because the data is not all the same type, and I want to manually set each value. Should I just store them all in an empty class? Or is there a ...
How can I generate an ObjectId with mongoose?
...nerate a new new ObjectId
const newId2 = new mongoose.Types.ObjectId();
// Convert string to ObjectId
const newId = new mongoose.Types.ObjectId('56cb91bdc3464f14678934ca');
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Differences between Proxy and Decorator Pattern
...
Fully agree Sir. I would convert that in other words what I meant was with Proxy Pattern, the proxy class can hide the detail information of an object from its client. Therefore, when using Proxy Pattern, we usually create an instance of abject insid...
Difference between binary tree and binary search tree
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A binary tree is made of nodes, where each node contains a "left" pointer, a "right" pointer, and a data element. The "root" pointer points to the topmost node in the tree. The left and right pointers recursively point to smaller "subtrees" on either side. A null pointer represents a binary t...
explicit casting from super class to subclass
...[] args)
{
Dog d = getMeAnAnimal();// ERROR: Type mismatch: cannot convert Animal to Dog
Dog d = (Dog)getMeAnAnimal(); // Downcast works fine. No ClassCastException :)
d.eat();
}
private static Animal getMeAnAnimal()
{
Animal animal = new Dog();
return animal;
}
However, ...
What is the difference between Scala's case class and class?
...on through cloning:
val treeC = treeA.copy(left = treeB.left)
// Pretty printing:
println("Tree A: "+treeA)
println("Tree B: "+treeB)
println("Tree C: "+treeC)
// Comparison:
println("Tree A == Tree B: %s" format (treeA == treeB).toString)
println("Tree B == Tree C: %s" format (treeB == treeC).toS...
The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communicat
...happen on your server side, and you didn't catch and handle it, and didn't convert it to a SOAP fault, either.
Now since the server side "bombed" out, the WCF runtime has "faulted" the channel - e.g. the communication link between the client and the server is unusable - after all, it looks like you...
efficient circular buffer?
...s answer is very misleading - Python's deque appears to be quite fast, but converting from and to numpy arrays slows it down considerably in the benchmarks you link to.
– xitrium
Dec 11 '19 at 18:09
...
wkhtmltopdf: cannot connect to X server
I have been using wkthmltopdf to convert html to pdf documents on-the-fly on my linux web server. The program originally needed X11 or similar X server to run correctly, but through many requests by developers to have this run on servers without GUI, I am pretty sure it runs a virtual X server in...