What’s the syntax for mod in java
Instead of the modulo operator, which has slightly different semantics, for non-negative integers, you can use the remainder operator %. For your exact example: This can be simplified to a one-liner:
Removing duplicates in lists
The common approach to get a unique collection of items is to use a set. Sets are unordered collections of distinct objects. To create a set from any iterable, you can simply pass it to the built-in set() function. If you later need a real list again, you can similarly pass the set to the list() function. The following example should cover whatever you … Read more
git – remote add origin vs remote set-url origin
below is used to a add a new remote: below is used to change the url of an existing remote repository: below will push your code to the master branch of the remote repository defined with origin and -u let you point your current local branch to the remote master branch:
What does this symbol () => mean in Javascript? [duplicate]
It’s an arrow function, newly defined in ES6. An arrow function expression has a shorter syntax than a function expression and does not bind its own this, arguments, super, or new.target. Arrow functions are always anonymous. These function expressions are best suited for non-method functions, and they cannot be used as constructors. They are often just a shorter way of writing the anonymous … Read more
When is it practical to use Depth-First Search (DFS) vs Breadth-First Search (BFS)? [closed]
That heavily depends on the structure of the search tree and the number and location of solutions (aka searched-for items). If you know a solution is not far from the root of the tree, a breadth first search (BFS) might be better. If the tree is very deep and solutions are rare, depth first search … Read more
strdup() – what does it do in C?
Exactly what it sounds like, assuming you’re used to the abbreviated way in which C and UNIX assigns words, it duplicates strings 🙂 Keeping in mind it’s actually not part of the ISO C standard itself(a) (it’s a POSIX thing), it’s effectively doing the same as the following code: In other words: It tries to allocate enough memory … Read more
What is ICANN domain status: ‘clientTransferProhibited’?
Your question is offtopic here but any conforming whois server (or if using RDAP) shows things that way: Note the hyperlinks given. And for your specific one, the text displayed after the jump is: This status indicates that it is not possible to transfer the domain name registration, which will help prevent unauthorized transfers resulting … Read more
How to format a JavaScript date
For custom-delimited date formats, you have to pull out the date (or time) components from a DateTimeFormat object (which is part of the ECMAScript Internationalization API), and then manually create a string with the delimiters you want. To do this, you can use DateTimeFormat#formatToParts. You could destructure the array, but that is not ideal, as … Read more
How can I implement a tree in Python?
I am trying to construct a General tree. Are there any built-in data structures in Python to implement it?
Git pushing to remote branch
Simply push this branch to a different branch name