In Rust, there are 2 ways to reverse a string. Using rev Function The str::rev() function reverses an iterator’s direction. See the following example: fn main() { let mut s = "Hello"; println!("{}", s.chars().rev().collect::<String>());...

In Rust, there are 2 ways to get the string length in characters. Using chars Function The str::chars() function returns an iterator over the chars of a string slice. See the following example: fn main() { let mut s = "Hello"; println!("{}...

In Rust, using the read_dir function is the easiest way to list files of a directory. Using read_dir Function The fs::read_dir() function returns an iterator over the entries within a directory. See the following example: use std::fs; fn main...

In Rust, there are 2 ways to iterate through the values of an enum. Using a static array If the enum is C-like, then you can create a static array of each of the variants and return an iterator of references to them: use self::Direction::*; use...

In Rust, there are 3 ways to iterate over a string by character. Using chars Method The chars() method returns an iterator over the chars of a string slice. See the following example: fn main() { let s = "abc"; for c in s.chars() { pr...

In Rust, there are 2 ways to access command line parameters. Using std::env::args Function This function actually returns the arguments that this program was started with. See the following example: use std::env; fn main() { for arg in env::...

In Rust, there are 3 ways to split a string. Using split Function An iterator over substrings of this string slice, separated by characters matched by a pattern. See the following example: fn main() { let s = "abc1bcd2e"; let _split = s.sp...

In Rust, there are 3 ways to convert string to json. Using Serde JSON Serde is a framework for serializing and deserializing Rust data structures efficiently and generically. Adding dependencies In Cargo.toml file we’ll add this information. [de...

In Rust, variables by default are immutable.Variables Immutable You can make them mutable by adding mut in front of the variable name. For example, fn main() { let x = 2; println!("value x: {}", x); x = 4; println!("value x: {}", x); } ...

In Rust, "Hello World!" is the first basic program. Build and Run In our main.rs, add the following code: // main.rs fn main() { println!("Hello,世界,こんにちは,안녕하세요") } Hello,世界,こんにちは,안녕하세요 we can run our application by typing: B...

In Rust, there are two ways to install rust in Linux.Running the following in your terminal If you’re running macOS, Linux, or another Unix-like OS. To download Rustup and install Rust, run the following in your terminal, then follow the on-screen i...