用GO语言对切片，通道和地图进行分配和直接分配有什么区别

Question

I'm new to go language, look this code section

a := make(map[string]string, 10)
a["name"] = "Blob"
// or
b := map[string]string{}
b["name"] = "Blob"

Questions:

Does "make" allocate memory on heap?

Does the "make" function only add one step to the initialization operation? like combination of malloc and memset in C language?

Answer 1

The difference is that make(map[string]string, 10) provides a capacity hint for the map and the composite literal map[string]string{} does not.

The maps are allocated on the heap in both cases.

The make function allocates and initializes an object as does the composite literal.