github.com/aacfactory/fns@v1.2.85/commons/operators/find.go (about)

     1  /*
     2   * Copyright 2023 Wang Min Xiang
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   * 	http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   *
    16   */
    17  
    18  package operators
    19  
    20  import "context"
    21  
    22  func Find[T any](ctx context.Context, array []T, fn func(context.Context, T) (bool, error)) (r T, found bool, err error) {
    23  	if array == nil || len(array) == 0 {
    24  		return
    25  	}
    26  	for _, e := range array {
    27  		found, err = fn(ctx, e)
    28  		if err != nil {
    29  			return
    30  		}
    31  		if found {
    32  			r = e
    33  			return
    34  		}
    35  	}
    36  	return
    37  }