使用Go语言创建列表列表

Question

Hi I try to create slice of slice of SyntaxCommand with undetermine length

var result = make([][]SyntaxCommand)
result = append(result, []SyntaxCommand{})
temp := SyntaxCommand{}
result = append(result[len(result)-1], temp)

but i encounter error

missing len argument to make([][]SyntaxCommand)
temp = SyntaxCommand{}

How to easily make a list of list of object that is nullable? Then add new list to the end, and an object to the last list with non undetermined length?

Answer 1

If you don't want to initialize the slice, don't use make

var result [][]SyntaxCommand