How many spaces is a tab in Java, Rust, C++, Python, C#, Powershell, Golang, Javascript

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How many spaces is a tab in Java, Rust, C+, Python, C#, Powershell, Golang, etc.

A tab is not made out of spaces. It is a tab, whether in Java, Python, Rust, or generic text file editing. It is represented by a single Unicode character, U+0009.

It does not generally mean “insert this many spaces here” either. It means “put the cursor at the next closest tab stop in the line”. What that means exactly depends on the context. On an old typewriter I had, a tab key would advance the roller to the next column that was a multiple of 10

How many spaces is a tab in Java

That is pretty much the same function as the tab character does.

Just for reference, modern text editors have their tab stops set to either every 4 or every 8 characters. That doesn’t mean that 1 tab = 4/8 spaces, that means that putting in a tab will align the cursor with the next multiple of 4/8 columns

How many spaces is a tab in Java

In mainstream IDEs you can set the tab key to insert a desired number of spaces instead of a tab character.

 The concept of tab independent of space is rarely used these days. In any case, what the character represents is decoupled from what the key does is decoupled from what the screen shows.

In many IDEs, the tab character inserts the required number of spaces to advance to the next tab line. This is often a default.

I imagine it’s a compromise between tab loving extremists and space advocates. The ideal whitespace character is a subject of intense debate among programmers.


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    Hello fellow programs! tl;dr some revisions to the rules to reduce low quality blogspam. The most notable are: banning listicles ("7 cool things I copy-pasted from somebody else!"), extreme beginner articles ("how to use a for loop"), and some limitations on career posts (they must be related to programming careers). Lastly, I want feedback on these changes and the subreddit in general and invite you to vote and use the report button when you see posts that violate the rules because they'll help us get to it faster. r/programming's mission is to be the place with the highest quality programming content, where I can go to read something interesting and learn something new every day. Last time we spoke I introduced the rules that we've been moderating by to accomplish that. Subjectively, quality on the subreddit while not perfect is much improved since then. 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"Does Devin mean that programming is over?", "Will AI put farmers out of work?", "Is AI art?". For a few weeks these were the titles of about 20 articles per day, some scoring high and some low. Fashions like this come and go but I'm keeping an eye on it. Newsletters: There are a few people that post every edition of their newsletter to reddit, where that newsletter is really just aggregating content from elsewhere. It's clear that they are trying to grow a monetised audience using reddit, but that's okay if it's providing valuable curation or if the content is good and people like it. So we'll see. Career posts. Personally I'd like r/programming to be a deeply technical place but as mentioned there's clearly an audience for career advice. That said, the posts that are scoring the highest in this category are mostly people upvoting to agree with a statement in the title, not something that anybody is learning from. ("Don't make your engineers context-switch." "Everybody should get private offices." "Micromanaging sucks.") The ones that one could actually learn from with an instructive lean mostly don't do well; people seem to not really be interested in how to have the best 1:1s with their managers or how you went from Junior to Senior in 18 hours (though sometimes they are). That tells me that there's some subtlety to why these posts are scoring well and I'm keeping an eye on the category. What I don't want is for "vote up if you want free snacks" to push out the good stuff or to be a farm for the other 90% of content that's really just personal brand builders. I'm sure you're as annoyed as I am about these but they're fuzzy lines and difficult to come up with objective criteria around. As always I'm looking for feedback on these and if I'm missing any and any other points regarding the subreddit and moderation so let me know what you think. The rules! With all of that, here is the current set of the rules with the above changes included so I can link to them all in one place. ✅ means that it's currently allowed, 🚫 means that it's not currently allowed, ⚠️ means that we leave it up if it is already popular but if we catch it young in its life we do try to remove it early. ✅ Actual programming content. They probably have actual code in them. Language or library writeups, papers, technology descriptions. How an allocator works. How my new fancy allocator I just wrote works. How our startup built our Frobnicator. For many years this was the only category of allowed content. ✅ Academic CS or programming papers ✅ Programming news. ChatGPT can write code. A big new CVE just dropped. Curl 8.01 released now with Coffee over IP support. ✅ Programmer career content. How to become a Staff engineer in 30 days. Habits of the best engineering managers. These must be related or specific to programming/software engineering careers in some way ✅ Articles/news interesting to programmers but not about programming. Work from home is bullshit. Return to office is bullshit. There's a Steam sale on programming games. Terry Davis has died. How to SCRUMM. App Store commissions are going up. How to hire a more diverse development team. Interviewing programmers is broken. ⚠️ General technology news. Google buys its last competitor. A self driving car hit a pedestrian. Twitter is collapsing. Oculus accidentally showed your grandmother a penis. Github sued when Copilot produces the complete works of Harry Potter in a code comment. Meta cancels work from home. Gnome dropped a feature I like. How to run Stable Diffusion to generate pictures of, uh, cats, yeah it's definitely just for cats. A bitcoin VR metaversed my AI and now my app store is mobile social local. 🚫 Politics. The Pirate Party is winning in Sweden. Please vote for net neutrality. Big Tech is being sued in Europe for gestures broadly. Grace Hopper Conference is now 60% male. 🚫 Gossip. Richard Stallman switches to Windows. Elon Musk farted. Linus Torvalds was a poopy-head on a mailing list. The People's Rust Foundation is arguing with the Rust Foundation For The People. Terraform has been forked into Terra and Form. Stack Overflow sucks now. Stack Overflow is good actually. ✅ Demos with code. I wrote a game, here it is on GitHub 🚫 Demos without code. I wrote a game, come buy it! Please give me feedback on my startup (totally not an ad nosirree). I stayed up all night writing a commercial text editor, here's the pricing page. I made a DALL-E image generator. I made the fifteenth animation of A* this week, here's a GIF. 🚫 AskReddit type forum questions. What's your favourite programming language? Tabs or spaces? Does anyone else hate it when. 🚫 Support questions. How do I write a web crawler? How do I get into programming? Where's my missing semicolon? Please do this obvious homework problem for me. Personally I feel very strongly about not allowing these because they'd quickly drown out all of the actual content I come to see, and there are already much more effective places to get them answered anyway. In real life the quality of the ones that we see is also universally very low. 🚫 Surveys and 🚫 Job postings and anything else that is looking to extract value from a place a lot of programmers hang out without contributing anything itself. 🚫 Meta posts. DAE think r/programming sucks? Why did you remove my post? Why did you ban this user that is totes not me I swear I'm just asking questions. Except this meta post. This one is okay because I'm a tyrant that the rules don't apply to (I assume you are saying about me to yourself right now). 🚫 Images, memes, anything low-effort or low-content. Thankfully we very rarely see any of this so there's not much to remove but like support questions once you have a few of these they tend to totally take over because it's easier to make a meme than to write a paper and also easier to vote on a meme than to read a paper. ⚠️ Posts that we'd normally allow but that are obviously, unquestioningly super low quality like blogspam copy-pasted onto a site with a bazillion ads. It has to be pretty bad before we remove it and even then sometimes these are the first post to get traction about a news event so we leave them up if they're the best discussion going on about the news event. There's a lot of grey area here with CVE announcements in particular: there are a lot of spammy security "blogs" that syndicate stories like this. Pretty much all listicles are disallowed under this rule. 7 cool python functions. 14 ways to get promoted. If you found 15 amazing open source projects that will blow my mind, post those projects instead. ⚠️ Extreme beginner content. What is a variable. What is a for loop. Making an HTPT request using curl. Like listicles this is disallowed because of the quality typical to them, but high quality tutorials are still allowed and actively encouraged. ⚠️ Posts that are duplicates of other posts or the same news event. We leave up either the first one or the healthiest discussion. ⚠️ Posts where the title editorialises too heavily or especially is a lie or conspiracy theory. Comments are only very loosely moderated and it's mostly 🚫 Bots of any kind (Beep boop you misspelled misspelled!) and 🚫 Incivility (You idiot, everybody knows that my favourite toy is better than your favourite toy.) However the number of obvious GPT comment bots is rising and will quickly become untenable for the number of active moderators we have. submitted by /u/ketralnis [link] [comments]

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