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 manassehkatzâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Answer | — |
A: What is the difference between hashing and encryption? > What specific algorithm makes it possible to scramble data into an unrecoverable form, yet still be usable for its intended purpose? It isn't any one specific algorithm. There are many different algorithms both for hashing and for encryption. > Is it something like a checksum, in which a fun... (more) |
— | 3 months ago |
| Answer | — |
A: Are AI prompt engineering questions on topic? No. Software Development is about writing software. Yes, you can stretch almost anything that is an input to software to be "writing software". But arguably the closest analogue in actual Software Development to "AI Prompt Engineering" would be unit tests. A unit test basically says: I am writing... (more) |
— | 10 months ago |
| Answer | — |
A: What are the types of contact forms? There is no "official" contact form. A form is a form is form. HTML (and by extension any language that generates HTML as output) has "forms". A form could be for "contact" or "order" or "chat" or anything else. A form can produce output on the same page (via AJAX or similar) or a new page, and the o... (more) |
— | almost 3 years ago |
| Answer | — |
A: Why most hosting providers support ticket systems allow text only (no formatting)? TL;DR Simply not necessary Markdown, and other methods of formatting (Word or similar documents, HTML/CSS, Latex, etc.) are used where the document is the product. In this case, the support ticket system is purely a means to an end. The messages are "just the facts" and meant to be read only o... (more) |
— | almost 3 years ago |
| Answer | — |
A: Why often times data compression causes data loss? Data compression uses a wide variety of tactics to reduce the storage needed for data, including (just off the top of my head): Run length encoding - e.g., store aaaaa as ax5 Tokenizing commonly used items - e.g., a BASIC interpreter might store each keyword as a single byte, since the location... (more) |
— | about 3 years ago |
| Answer | — |
A: PHP emails are sent when $message is a string, but not when its an array From the PHP mail manual > mail ( string $to , string $subject , string $message , array|string $additionalheaders = [] , string $additionalparams = "" ) : bool PHP manual syntax (typical for many languages) lists the type of each function parameter prior to the name of the parameter. Since par... (more) |
— | about 3 years ago |
| Answer | — |
A: Is migrating emails from one hosting provider to another a trouble? This is a very common problem. First some basics: There are two very different things in email: Email Server (a.k.a. hosting) This is the system that sends, receives and stores email messages. It may be a single computer, it may be a group of computers (for load sharing and/or redundancy). ... (more) |
— | about 3 years ago |
| Answer | — |
A: PHP script to create a KML square centred on a point. 1 - Rearrange the code: Open stdin, read all parameters, close stdin, then process the parameters. 2 - Consider adding some validation to the parameters. 3 - Add an explanation of the magic number 6378137 - I had to Google it to find out what it means. 4 - Replace $i = 45, $i += 90 and the f... (more) |
— | over 3 years ago |
| Answer | — |
A: Are reference requests welcome here? This will be community dependent - e.g., Software Development, Outdoors, Cooking, etc. might each have a different rule. IMHO, there are two issues here: How helpful is such information, compared to just telling people "Google it yourself" - i.e., is a curated reference list "useful"? Is such i... (more) |
— | over 3 years ago |
| Answer | — |
A: Would a MySQL database run more efficiently with smaller varchar lengths? YES or NO: It all depends on the storage engine Fairly universally, though IIRC from looking at PostgreSQL a while back, PostgreSQL may not even do that, there is a difference between CHAR/VARCHAR/BINARY/BLOB/TEXT etc. types based on declared size, where 1, 2 or 4 bytes are used to store the actua... (more) |
— | over 3 years ago |
| Answer | — |
A: Should a salt be stored in the same database as the hash? When I first learned about salting, I thought the same thing. But as I understand it, because each salt is unique (or substantially unique within a given database table), storing the salt & hash together does not open you up to a rainbow attack. On the other hand, if they are stored separately (separ... (more) |
— | over 3 years ago |
| Answer | — |
A: How does the community feel about resource requests? I think these kinds of questions are fine, but I am just one person. open source product I have been using appears to be poorly-documented is an extremely common problem. I have actually seen the problem even on some paid products. So searching for help that should be in a project's documentation ... (more) |
— | over 3 years ago |
| Answer | — |
A: Can renaming a MySQL column be sped up by dropping indexes or foreign keys? I would simply turn off foreign key checks: SET FOREIGNKEYCHECKS=0; and make all the changes, and then turn foreign key checks back on: SET FOREIGNKEYCHECKS=1; (more) |
— | over 3 years ago |
| Question | — |
Initial List of Tags As far as I can tell, there are no tags yet for the main Q&A. I suggest setting an initial group of tags which help organize questions. Two groups I think would be particularly helpful are languages and topics. For languages, there seem to be a variety of "top n lists", so we can pick one or just... (more) |
— | over 3 years ago |