Typescript : Trying the addition of two variables but get the concatenation of the two
prepend the numbers with +: let a = +b + +c; ref
addition
Why is subtraction faster than addition in Python?
I can reproduce this on my Q6600 (Python 2.6.2); increasing the range to 100000000: (‘+=’, 11.370000000000001) (‘-=’, 10.769999999999998) First, some observations: This is 5% for a trivial operation. That’s significant. The speed of the native addition and subtraction opcodes is irrelevant. It’s in the noise floor, completely dwarfed by the bytecode evaluation. That’s talking about … Read more
C# way to add value in a List at index
The .Insert() method on List<T> is exactly for this purpose: someList.Insert(2, someValue); This would modify the someList collection to insert someValue at index 2, pushing other values up one index. More information here.
Java: Adding fields and methods to existing Class?
You can create a class that extends the one you wish to add functionality to: public class sub extends Original{ … } To access any of the private variables in the superclass, if there aren’t getter methods, you can change them from “private” to “protected” and be able to reference them normally. Hope that helps!
git add multiple files at once
How to add multiple files with different extensions to git all at one time… You can add to git by explicitly listing each file with spaces as delimiters. $ git add file-name-1.php file-name-2.js file-name-3.html … The accepted answer is perfect for the OP’s specific case. But I got here—via Google—needing to add multiple files with … Read more
git: Unable to index file – permission denied
If you are using visual studio or something similar that is generating the mdf file, simply close VS & retry your git command again. This time it should work. To save constantly closing & reopening, you should add references into .gitignore file in the project root. For example, if it is a database causing the … Read more
How do I add two integers together with Twisted?
OK, to be clear. Twisted doesn’t do anything about cpu bound tasks and for good reason. there’s no way to make a compute bound job go any quicker by reordering subtasks; the only thing you could possibly do is add more compute resources; and even that wouldn’t work out in python because of a subtlety … Read more
Null values of Strings and Integers in Java
Your code makes use of two different additive operators. The first three lines use string concatenation, whereas the last one uses numeric addition. String concatenation is well-defined to turn null into “null”: If the reference is null, it is converted to the string “null” (four ASCII characters n, u, l, l). Hence there is no … Read more
Is integer multiplication really done at the same speed as addition on a modern CPU?
Multiplication of two n-bit numbers can in fact be done in O(log n) circuit depth, just like addition. Addition in O(log n) is done by splitting the number in half and (recursively) adding the two parts in parallel, where the upper half is solved for both the “0-carry” and “1-carry” case. Once the lower half … Read more