jimmychu0807 · November 21, 2019 10:20 · Nov 21, 2019
diff --git a/string-conversion.rs b/string-conversion.rs
@@ -0,0 +1,40 @@
+use std::str;
+
+fn main() {
+  // -- FROM: vec of chars --
+  let src1: Vec<char> = vec!['j','{','"','i','m','m','y','"','}'];
+  // to String
+  let string1: String = src1.iter().collect::<String>();
+  // to str
+  let str1: &str = &src1.iter().collect::<String>();
+  // to vec of byte
+  let byte1: Vec<u8> = src1.iter().map(|c| *c as u8).collect::<Vec<_>>();
+  println!("Vec<char>:{:?} | String:{:?}, str:{:?}, Vec<u8>:{:?}", src1, string1, str1, byte1);
+
+  // -- FROM: vec of bytes --
+  // in rust, this is a slice
+  // b - byte, r - raw string, br - byte of raw string
+  let src2: Vec<u8> = br#"e{"ddie"}"#.to_vec();
+  // to String
+  // from_utf8 consume the vector of bytes
+  let string2: String = String::from_utf8(src2.clone()).unwrap();
+  // to str
+  let str2: &str = str::from_utf8(&src2).unwrap();
+  // to vec of chars
+  let char2: Vec<char> = src2.iter().map(|b| *b as char).collect::<Vec<_>>();
+  println!("Vec<u8>:{:?} | String:{:?}, str:{:?}, Vec<char>:{:?}", src2, string2, str2, char2);
+
+  // -- FROM: String --
+  let src3: String = String::from(r#"o{"livia"}"#);
+  let str3: &str = &src3;
+  let char3: Vec<char> = src3.chars().collect::<Vec<_>>();
+  let byte3: Vec<u8> = src3.as_bytes().to_vec();
+  println!("String:{:?} | str:{:?}, Vec<char>:{:?}, Vec<u8>:{:?}", src3, str3, char3, byte3);
+
+  // -- FROM: str --
+  let src4: &str = r#"g{'race'}"#;
+  let string4 = String::from(src4);
+  let char4: Vec<char> = src4.chars().collect();
+  let byte4: Vec<u8> = src4.as_bytes().to_vec();
+  println!("str:{:?} | String:{:?}, Vec<char>:{:?}, Vec<u8>:{:?}", src4, string4, char4, byte4);
+}