At First
- install go
- install VS Code
- install extension — go
Official Site | Here
Downloading tutorial | My Youtube Channel Here
Start
Why should we learn golang?
- first-class concurrency primtives
- type safety enforced by compiler
- Memory-safe; no use-after-free-bugs
- very fast(to compiles to machine code)
Always use Packages
- can import things by dot
Modules
- collection of packages
- can be managed by Go Cli
Data Types
statically typed language which is checked at the compiled time
types should be provided by the programmer
all primitives data types are numeric
- Signed / Unsigned Integer Types
- float 32/64
- complex 64 / 128
- bool
- type aliases
- give the new names to existing types
- converting between types required parentheses
Text Encoding
- text data uses UTF-8
- rune type(like char )
- rune is an alias for int32
- rune can represent any symbols(e.g. letters, numbers, emoji…)
Creation
rune
//single quote
'a', 'R', '\n'
//backtick
`a`, `R`, `\n`
Strings
"Deposit is $200\n"
"B"Raw Literals
`Ain't you like "Go!"\n`Go CLI
- build
- run
- mode
- test
- fmt
