learning-rust | Rust 学习之路 > Rust Programming Tutorial, include articles, interview, example, problems | Learning library
kandi X-RAY | learning-rust Summary
kandi X-RAY | learning-rust Summary
Rust 学习之路 > Rust Programming Tutorial, include articles, interview, example, problems.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of learning-rust
learning-rust Key Features
learning-rust Examples and Code Snippets
Community Discussions
Trending Discussions on learning-rust
QUESTION
I've been following a Rust tutorial where two versions of a function are purported to generate the same results:
Version 1: ...ANSWER
Answered 2020-Aug-12 at 09:24The problem comes from the and_then
call.
You are not allowed to change the error type when calling and_then
.
So your function there should return a Result, String>
. However, the error type returned by serde_json::from_str
is a serde_json::error::Error
.
You can fix it like this:
QUESTION
My objective is to upload a file on ipfs.io using Rust programming language. I am firing a command-line tool to do so and the command itself works but when implemented using Rust, it fails.
The actual command is:
...ANSWER
Answered 2020-Feb-17 at 23:40Your problem isn't with Command
it's with read_line
, which will read all bytes up to and including the newline character (see here). Therefore your path ends up containing the newline character, which is why the file cannot be found.
To solve this, you need to make sure that the file path doesn't contain the trailing newline, e.g. by calling trim_end on it before passing it to the command.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install learning-rust
Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page