initial

joplin notion extension/Web Development/Go/Initial.md

@@ -0,0 +1,36 @@
+Initial
+
+Install go compiler. 
+
+Sample program
+```go
+
+// file name : main.go
+package main
+import ("fmt")
+
+func main() {
+ fmt.Println("Hello World!")
+}
+```
+then run `go run main.go` or `go build -o main main.go && ./main`.
+for partilcular platform
+`GOOS=linux GOARCH=arm64 go build -o myapp-linux-arm64 .   `
+and equivalent of `npm i`
+to install all packages
+`go get .` or `go mod tidy`
+to install specific package
+`go get github.com/spf13/cobra@latest`
+to remove go package
+simply remove import statements and then run `go mod tidy`
+
+for initiating like `npm init -y`
+use `go mod init <module_name>`
+
+
+Program explanation
+1. in go every program is part of package that's why here is ths package main
+2. fmt package is imported 
+3. main function
+4. fmt.Println is used to print text
+5. Comments are like in C ie `//` for single line and `/*   */` for multi line