Covers memory layout of string data type, its relationship with rune slices and byte slices in Golang. We also discuss the conversion between these types, the compiler optimizations on these conversions and the strings.Builder object. Ascii, unicode and UTF-8 : https://www.youtube.com/watch?v=wIVmDPc16wA 0:00 Raw vs Interpreted string literals 1:40 String header & Memory Layout 2:37 Rune data type 4:45 Strings are Immutable 5:03 Slicing 5:22 Range Loop 6:50 Unicode replacement character 7:37 String - Bytes - Runes conversions 9:57 Compiler optimizations 11:02 String concatenation 12:33 strings.Builder 12:44 strings.Builder vs bytes.Buffer