rustHow do I use a String Builder in Rust?
String Builder is a type of data structure used to efficiently build strings in Rust. It is used to create a mutable string that can be modified in place.
Example code
let mut s = String::new();
let mut sb = String::new();
sb.push_str("Hello");
sb.push_str(" World!");
s.push_str(&sb);
println!("{}", s);
Output example
Hello World!
Code explanation
let mut s = String::new();
: creates a new empty stringlet mut sb = String::new();
: creates a new empty string buildersb.push_str("Hello");
: adds the string "Hello" to the string buildersb.push_str(" World!");
: adds the string " World!" to the string builders.push_str(&sb);
: adds the contents of the string builder to the stringprintln!("{}", s);
: prints the contents of the string
Helpful links
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