Welcome to Software Development on Codidact!
Will you help us build our independent community of developers helping developers? We're small and trying to grow. We welcome questions about all aspects of software development, from design to code to QA and more. Got questions? Got answers? Got code you'd like someone to review? Please join us.
Activity for hkotsubo
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Suggested Edit | Post #286345 |
Suggested edit: added relevant tag (more) |
helpful | about 2 years ago |
| Edit | Post #286347 | Initial revision | — | about 2 years ago |
| Answer | — |
A: Recursion without a procedure ("function") in JavaScript Yes, it's possible. In a more general way, every recursive algorithm can be converted to an iterative one (and vice-versa). You just need to use a stack). Internally, a recursive function will use a stack to "remember" its "level" (because each recursive call is like entering a new "level" - ju... (more) |
— | about 2 years ago |
| Edit | Post #286346 |
Post edited: |
— | about 2 years ago |
| Edit | Post #286346 | Initial revision | — | about 2 years ago |
| Answer | — |
A: Does a for...of loop must contain a variable without assignment sign, and why? > Does a `for...of` loop must contain a variable without assignment sign (`=`) Yes. > and why? Because that's the syntax defined by the language specification. The people who defined it decided to do it that way. Unless those people answer here (or we find a discussion about it somewhere,... (more) |
— | about 2 years ago |
| Suggested Edit | Post #286335 |
Suggested edit: formatting, added tag (more) |
declined | about 2 years ago |
| Edit | Post #286337 | Initial revision | — | about 2 years ago |
| Answer | — |
A: What are the types of DOM nodes? > any DOM "tree" node is actually a "branch" Not exactly. Document Object Model and Nodes According to the MDN documentation, the DOM (Document Object Model) is "the data representation of the objects that comprise the structure and content of a document on the web." It's a hierarchical... (more) |
— | about 2 years ago |
| Comment | Post #286335 |
The purpose of `for..of` is not only to provide a different syntax. With this statement, you can loop through any iterable object (you can even create your own). Some objects, for instance, don't have the `length` property or don't support the `[ ]` syntax to get a specific element, so using `for..of... (more) |
— | about 2 years ago |
| Comment | Post #286335 |
There's no `=` after `const` in *any* variable declaration. You either declare it as `const variableName;` or `const variableName = someValue;` (the `=` is after the variable name, not after `const` - yes, that was pedantic from my part, sorry)
Anyway, this `for..of` code is equivalent to:
```j... (more) |
— | about 2 years ago |
| Comment | Post #286317 |
@#56529 The "on the fly variable declaration" is simply the syntax of the [`for..of` statement](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...of): `for (const child of e.childNodes)` loops through `e.childNodes`, and in each iteration, the next element is set to t... (more) |
— | about 2 years ago |
| Edit | Post #286334 | Initial revision | — | about 2 years ago |
| Answer | — |
A: Delete all occurrences of a character in a webpage with vanilla JavaScript Some comments and your answer are doing this: ```javascript document.body.innerHTML = document.body.innerHTML.replace(/x/g, ''); ``` But as explained in the comments, this is not a good solution, because it can break the page's HTML. Actually, even if you restrict it to a specific element (in... (more) |
— | about 2 years ago |
| Comment | Post #286307 |
@#56529 "*it's harmful to use on an entire document*" - Actually, it's potentially harmful to use in **any** element, if its `innerHTML` contains tags/attributes with the character you're replacing. Let's say you use it in a `div`, and that `div` contains a `textarea` element. Replacing the letter "x... (more) |
— | about 2 years ago |
| Comment | Post #286307 |
As already pointed by @#53305, your code might completely destroy the HTML - in your case, it probably "worked" by luck/coincidence, because you're being more restrict: you select only one specific element (the one that has the `new_pages` class), and I guess there were no tags or attributes with the... (more) |
— | about 2 years ago |
| Comment | Post #286258 |
@#56529s My bad, `querySelector` returns the first element it finds, while `getElementsByTagName` returns a list of elements (and you should get only the first one). I edited the answer with the correct code (more) |
— | about 2 years ago |
| Edit | Post #286258 |
Post edited: |
— | about 2 years ago |
| Edit | Post #286258 |
Post edited: |
— | about 2 years ago |
| Edit | Post #286258 | Initial revision | — | about 2 years ago |
| Answer | — |
A: Move to the edit webpage of a webpage via the keyboard with vanilla JavaScript You're getting close, just need a few adjustments. Instead of using the `hostname` property, I prefer to use `host`, because it also includes the port (in case the URL has one) - check the documentation for more info. You should also get the `protocol` (which can be `http`, `https`, etc), to bu... (more) |
— | about 2 years ago |
| Edit | Post #286222 | Initial revision | — | about 2 years ago |
| Answer | — |
A: How to uncollapse the first and second tiers of a link tree in JavaScript? According to the documentation, the `hasAttribute` method expects only one argument (the attribute's name), and it tells only if that attribute is present, regardless of its value. Hence, the return is a boolean (only `true` or `false`). When you pass more than one argument, only the first one is ... (more) |
— | about 2 years ago |
| Comment | Post #286151 |
@#53853 How are you compiling those files?
I could reproduce the error, but it happens only if I compile `MainClass.java` before `QueueObject.java` (just `javac MainClass.java` before compiling `QueueObject`). If I compile both (such as `javac *.java` or even `javac MainClass.java QueueObject.java... (more) |
— | about 2 years ago |
| Edit | Post #286084 | Initial revision | — | about 2 years ago |
| Answer | — |
A: How can the Caesar cipher be implemented in Java? Caesar Cipher originally deals only with letters (ASCII "A" to "Z", without diacritics/accents), so I'm not sure why you included `ۤ$%&` in your answer. And using `indexOf` (as you did) is not very efficient, because it always makes a loop through the string, until the character is found (which me... (more) |
— | about 2 years ago |
| Edit | Post #286054 | Initial revision | — | about 2 years ago |
| Answer | — |
A: Mocking methods with arguments Based on your answer, I guess you just wanted to have a list of unique arguments that were passed to `B::add`. In that case, you could use a `Set` instead of a `List`: ```java // "Type" is whatever type B:add receives as argument Set calledArgs = new LinkedHashSet<>(); @Test public void te... (more) |
— | about 2 years ago |
| Comment | Post #286047 |
May I suggest you to change the exception type in your example? `ArrayIndexOutOfBoundsException` is an unchecked exception, therefore the behaviour you described doesn't happen (it only does when it's a checked exception). (more) |
— | about 2 years ago |
| Comment | Post #286031 |
Let's see if I understood: `B::add` is called multiple times, and you want to check if all calls receives a different argument? Let's say, if it calls `b.add(1)` and `b.add(2)`, the test passes, but if it calls `b.add(1)` twice, it fails.
Is `BMock` required for that? Or only checking for a repeat... (more) |
— | about 2 years ago |
| Comment | Post #286031 |
Well, inside `BMock`'s constructor, just add `super(whateverArgsBConstructorExpects)` and that's it :-)
Or maybe you could use PowerMockito: see the "Replacing" section in [this link](https://blog.jayway.com/2013/03/05/beyond-mocking-with-powermock/) (more) |
— | about 2 years ago |
| Comment | Post #286031 |
In that case, you could do `BMock extends B` and then set `a.b = new BMock()` (more) |
— | about 2 years ago |
| Comment | Post #286031 |
I'm trying to test your code, but I think there are some details missing. I understood that `A::add` calls `B::add` (as shown in the code), which in turn will call `BMock::add` (`B` code wasn't provided, so I'm guessing). Which one do you want to test?
"_If it gets called twice with the same item_... (more) |
— | about 2 years ago |
| Comment | Post #286017 |
@#8196 Well, I think you don't want to change the code for the wrong reasons: "*less lines*" isn't necessarily "better", you should try to write good, clean, readable and correct code, regardless of how many lines you need to achieve that. Sometimes less is better, of course, but sometimes the attemp... (more) |
— | about 2 years ago |
| Comment | Post #286017 |
`Foo` could have a constructor that receives `x`, so it becomes `bar.fun(new Foo(42))`, or static factory methods, such as `Foo.withX(42)` that returns a `Foo` instance with `x` value set. (more) |
— | about 2 years ago |
| Comment | Post #285968 |
Perhaps that's another question, but in `void* p = malloc(n); scanf("%d", p);`, what happens if `n` is less than `sizeof(int)`? I guess it's UB, right? (more) |
— | about 2 years ago |
| Edit | Post #285956 |
Post edited: fixed link |
— | about 2 years ago |
| Edit | Post #285965 |
Post edited: |
— | about 2 years ago |
| Edit | Post #285965 | Initial revision | — | about 2 years ago |
| Question | — |
Is it OK to use scanf with a void pointer? I've created a function that calls `scanf` passing a void pointer as argument: ```c void read(const char format, void p) { scanf(format, p); } ``` And tested it with different types: ```c int n; read("%d", &n); printf("read int: %d\n", n); float f; read("%f", &f); printf("rea... (more) |
— | about 2 years ago |
| Suggested Edit | Post #285956 |
Suggested edit: fixed link (more) |
helpful | about 2 years ago |
| Edit | Post #285917 |
Post edited: |
— | about 2 years ago |
| Edit | Post #285939 |
Post edited: Remove parts not relevant to the question |
— | about 2 years ago |
| Suggested Edit | Post #285939 |
Suggested edit: Remove parts not relevant to the question (more) |
helpful | about 2 years ago |
| Edit | Post #285939 |
Post edited: Fix formatting, remove noise |
— | about 2 years ago |
| Suggested Edit | Post #285939 |
Suggested edit: Fix formatting, remove noise (more) |
helpful | about 2 years ago |
| Comment | Post #285918 |
@#53280 Thanks for the feedback and suggestions. I've updated the answer. (more) |
— | about 2 years ago |
| Edit | Post #285918 |
Post edited: |
— | about 2 years ago |
| Edit | Post #285918 |
Post edited: |
— | about 2 years ago |
| Edit | Post #285918 |
Post edited: |
— | about 2 years ago |