成对迭代字符串数组以创建映射[重复]

Question

This question already has an answer here:

• Golang: convert slices into map 2 answers

I have an array of strings whose length is always a multiple of two.

I want to create a map out of this array, so that

myarr = ["key1", "val1", "key2", "val2", ...]

becomes a map where

mymap := mapify(myarr)
mymap['key1'] == "val1"
mymap['key2'] == "val2"

In Python I can do this with the following code

mymap = {}
for x, y in zip(*[iter(myarr)]*2):
  mymap[x] = y

</div>

Answer 1

You can write your own function, something like that:

package main

import (
    "fmt"
)

var myarr = []string{"key1", "val1", "key2", "val2"}

func mapify(kv []string) map[string]string {
    mymap := make(map[string]string)

    for i := 0; i+1 <= len(kv); i = i + 2 {
        mymap[kv[i]] = kv[i+1]
    }

    return mymap
}

func main() {
    fmt.Println(myarr)
    fmt.Println(mapify(myarr))
}

Outputs

[key1 val1 key2 val2]
map[key1:val1 key2:val2]

Try it here