A golang data type equivalent to python's collections.OrderedDict
Retains order of keys in maps
Can be JSON serialized / deserialized
package main
import (
"encoding/json"
"github.com/iancoleman/orderedmap"
)
func main() {
// use New() instead of o := map[string]interface{}{}
o := orderedmap.New()
// use SetEscapeHTML() to whether escape problematic HTML characters or not, defaults is true
o.SetEscapeHTML(false)
// use Set instead of o["a"] = 1
o.Set("a", 1)
// add some value with special characters
o.Set("b", "\\.<>[]{}_-")
// use Get instead of i, ok := o["a"]
val, ok := o.Get("a")
// use Keys instead of for k, v := range o
keys := o.Keys()
for _, k := range keys {
v, _ := o.Get(k)
}
// use o.Delete instead of delete(o, key)
o.Delete("a")
// serialize to a json string using encoding/json
bytes, err := json.Marshal(o)
prettyBytes, err := json.MarshalIndent(o, "", " ")
// deserialize a json string using encoding/json
// all maps (including nested maps) will be parsed as orderedmaps
s := `{"a": 1}`
err := json.Unmarshal([]byte(s), &o)
// sort the keys
o.SortKeys(sort.Strings)
// sort by Pair
o.Sort(func(a *orderedmap.Pair, b *orderedmap.Pair) bool {
return a.Value().(float64) < b.Value().(float64)
})
}
None of the alternatives offer JSON serialization.
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