10 examples of 'golang check if key in map' in Go

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104func keyInMap(k string, m map[string]interface{}) bool {
105 if _, ok := m[k]; ok {
106 return true
107 }
108 return false
109}
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652func mapContainsKeyPartial(theMap map[string]interface{}, key string) (bool, interface{}) {
653 for k, v := range theMap {
654 if strings.Contains(k, key) {
655 return true, v
656 }
657 }
658 return false, nil
659}
129func hasKey(dict map[string]string, key string) bool {
130 if value, found := dict[key]; found {
131 return value != ""
132 }
133 return false
134}
465func keyExists(key string, haystack map[string]string) bool {
466 _, exists := haystack[key]
467 return exists
468}
47func MapHasKey(m *map[string]string, label string) bool {
48 ans := false
49 if m != nil {
50 for k, _ := range *m {
51 if k == label {
52 ans = true
53 break
54 }
55 }
56 }
57 return ans
58}
244func findMapInSliceBasedOnKeyValue(m []interface{}, key string, value interface{}) (map[string]interface{}, int, bool) {
245 for k, v := range m {
246 typedV := v.(map[string]interface{})
247 valueToMatch, ok := typedV[key]
248 if ok && valueToMatch == value {
249 return typedV, k, true
250 }
251 }
252 return nil, 0, false
253}
256func (d *V8value) HasValueBykey(key string) int32 {
257 key_ := C.cef_string_userfree_alloc()
258 setCEFStr(key, key_)
259 defer func() {
260 C.cef_string_userfree_free(key_)
261 }()
262 return int32(C.gocef_v8value_has_value_bykey(d.toNative(), (*C.cef_string_t)(key_), d.has_value_bykey))
263}
774func Ismap(data interface{}, templs ...string) Attribute {
775 attr := Attribute{ Data: data, Name: "Ismap" }
776 if len(templs) == 0 {
777 attr.Templ = `{{define "Ismap"}}ismap="{{.}}"{{end}}`
778 } else {
779 attr.Templ = `{{define "Ismap"}}ismap="` + strings.Join(templs, " ") + `"{{end}}`
780 }
781 return attr
782}
508func IsMapWithStringAsKey(i interface{}) (map[string]interface{}, bool) {
509 temp := make(map[string]interface{}, 0)
510
511 if i == nil {
512 return temp, false
513
514 } else if si, ok := i.(map[string]interface{}); ok {
515 if len(si) == 0 {
516 return temp, false
517 } else {
518 return si, true
519 }
520
521 } else if ii, ok := i.(map[interface{}]interface{}); ok {
522 if len(ii) == 0 {
523 return temp, false
524 }
525
526 for k, v := range ii {
527 if ks, ok := k.(string); ok {
528 temp[strings.ToLower(ks)] = v
529 } else {
530 return temp, false
531 }
532 }
533
534 } else {
535 return temp, false
536 }
537
538 return temp, true
539}
229func IsMapLast(data interface{}, element interface{}) bool {
230 switch reflect.TypeOf(data).Kind() {
231 case reflect.Map:
232 mapItem := reflect.ValueOf(data).MapKeys()
233
234 var keys []string
235 for _, k := range mapItem {
236 keys = append(keys, k.String())
237 }
238 sort.Strings(keys)
239 mapItemType := keys[len(keys)-1]
240 return (mapItemType == element)
241 }
242 return false
243}

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