What is the difference between Go's delete function for removing map elements and Go's zero values for maps?

Question

Jayant Kumar · Accepted Answer

Go's delete function is used to remove an element from a map by specifying its key. If the specified key is not found in the map, the delete function does nothing. On the other hand, Go's zero value for maps is an empty map, which contains no elements.
Here is an example of using the delete function:
m := map[string]int{
    "apple":  1,
    "banana": 2,
    "orange": 3,
}
delete(m, "banana") // remove the "banana" element
fmt.Println(m)      // map[apple:1 orange:3]

In this example, we create a map m with three key-value pairs. We then use the delete function to remove the "banana" element from the map. Finally, we print the resulting map.
Here is an example of using the zero value for maps:
m := map[string]int{}
fmt.Println(len(m)) // 0

In this example, we create an empty map m using the zero value syntax. We then use the len function to determine that the map contains zero elements.

What is the difference between Go's delete function for removing map elements and Go's zero values for maps?

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What is the difference between Go's delete function for removing map elements and Go's zero values for maps?

Jayant Kumar @jayantkumar314

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