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Preallocate slices and remove double type assertion

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This commit is contained in:
Tim Scheuermann 2019-10-11 23:13:18 +02:00
parent 25234e03da
commit ca18a14d43
1 changed files with 9 additions and 9 deletions
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18
utils/conversions.go
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@ -8,7 +8,7 @@ import (
// MapToStrs takes a map of interfaces and returns a map of strings
func MapToStrs(aMap map[string]interface{}) map[string]string {
results := make(map[string]string)
results := make(map[string]string, len(aMap))
for key, val := range aMap {
results[key] = val.(string)
@ -21,10 +21,10 @@ func MapToStrs(aMap map[string]interface{}) map[string]string {
// ToInts takes a slice of interfaces and returns a slice of ints
func ToInts(slice []interface{}) []int {
results := []int{}
results := make([]int, len(slice))
for _, val := range slice {
results = append(results, val.(int))
for i, val := range slice {
results[i] = val.(int)
}
return results
@ -32,14 +32,14 @@ func ToInts(slice []interface{}) []int {
// ToStrs takes a slice of interfaces and returns a slice of strings
func ToStrs(slice []interface{}) []string {
results := []string{}
results := make([]string, len(slice))
for _, val := range slice {
switch val.(type) {
for i, val := range slice {
switch t := val.(type) {
case int:
results = append(results, strconv.Itoa(val.(int)))
results[i] = strconv.Itoa(t)
case string:
results = append(results, val.(string))
results[i] = t
}
}