Zero-initialization
Zero-initialization is a source of confusion sometimes. They are default values for many types that are assigned even if you don't provide a value for the definition. Following are the zero-initialization for various types:
- The
false
initialization forbool
type. - Using
0
values forint
type. - Using
0.0
forfloat
type. - Using
""
(empty strings) forstring
type. - Using
nil
keyword for pointers, functions, interfaces, slices, channels and maps. - Empty
struct
for structures without fields. - Zero-initialized
struct
for structures with fields. The zero value of a structure is defined as the structure that has its fields initialized as zero value too.
Zero-initialization is important when programming in Go because you won't be able to return a ...
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