Since vec![] is actually expanded to calling into_vec on an empty boxed slice, the IR includes some unwinding stuff, while with Vec::new() you don't get that. However in practice you still get the same generated code in the end, so it is a matter of taste; if it was not, I guess the vec macro would have been modified to expand to Vec::new ...

2024年5月1日 · I unfortunately got laid off a couple weeks ago. After filing my initial claim online, I was able to use ID.me to login, I got notified that there were 2 issues delaying my payment: "lack of work" and "severance." I went to my local VEC office today to try and address these issues, but they were asking for my PIN. I was never issued a PIN.

2022年8月29日 · { vec.push(element); vec } or if you’re adding multiple elements either extend or extend_from_slice, e.g.: { vec.extend(other_vec); vec } Unless of course you don’t care about performance in which case you can use concat.

2023年1月24日 · To avoid overhead from using hash maps I decided to perform one-time remapping from UID to plain usize and use Vec to store the data.So when I load data - I push records to Vec and update 'idx' field of each record by index of this record in my registry array.I also have temporal HashMap to track UID -> index mapping and in related collections ...

2023年10月5日 · Helping my spouse with her unemployment claim, and boy is the VEC terrible. She was laid off but got a separation agreement. We thought we indicated as much on her claim, but chose something that makes VEC think she voluntarily left her job. She clarified in some follow-up prompts, but never got clear indication if her claim was approved.

2014年12月8日 · some_vec.iter().take(n) where n is the number of things you want to take.. Unsure about the last elements in a very simple way.

2021年9月3日 · A place for all things related to the Rust programming language—an open-source systems language that emphasizes performance, reliability, and productivity.

2023年5月29日 · Afterall, VEC owes me backpay close to $10k. It initially tried to collect from me what it owed, but after a hearing and strong rebuttal, it went back cowering by saying it will grant me an overpayment waiver. Something that I never asked nor need because, again, VEC owes me for the backpay that it failed to pay me during the pandemic.

2020年7月24日 · If you want to consume the entire Vec and just return the first element, then you could do it as you currently are and just remove the &mut from the argument so that the function takes self by value (moves it). Alternatively, you could just …

2022年1月14日 · My technique to do this is to immutably iterate the Vec first and keep track of the index of the item to be set and its corresponding value into a Map. Then iterate the Vec once again, this time mutably and get the value from the map using the index and set it.