9951 explained code solutions for 126 technologies


rustHow do I get the first character from a string in Rust?


The easiest way to get the first character from a string in Rust is to use the chars() method. This method returns an iterator over the characters of a string. The first character can then be accessed using the next() method.

Example code

let s = "Hello";
let first_char = s.chars().next();

Output example

Some('H')

Code explanation

  • let s = "Hello": This line declares a string variable s and assigns it the value "Hello".
  • let first_char = s.chars().next(): This line calls the chars() method on the s string variable, which returns an iterator over the characters of the string. The next() method is then called on the iterator, which returns the first character of the string.

Helpful links

Edit this code on GitHub