从JSON数组中搜索值

[
  {"name": "Alice", "age": 30},
  {"name": "Bob", "age": 25},
  {"name": "Charlie", "age": 35}
]

const jsonArray = [
  { name: "Alice", age: 30 },
  { name: "Bob", age: 25 },
  { name: "Charlie", age: 35 }
];

function searchByName(name) {
  return jsonArray.find(item => item.name === name);
}

console.log(searchByName("Bob")); // 输出: { name: 'Bob', age: 25 }

import json

json_array = json.loads('''
[
  {"name": "Alice", "age": 30},
  {"name": "Bob", "age": 25},
  {"name": "Charlie", "age": 35}
]
''')

def search_by_name(name):
    for item in json_array:
        if item['name'] == name:
            return item
    return None

print(search_by_name("Bob"))  # 输出: {'name': 'Bob', 'age': 25}

from collections import defaultdict

# 构建索引
index = defaultdict(list)
for idx, item in enumerate(json_array):
    index[item['name']].append(idx)

def search_by_name_with_index(name):
    if name in index:
        return [json_array[idx] for idx in index[name]]
    return []

print(search_by_name_with_index("Bob"))  # 输出: [{'name': 'Bob', 'age': 25}]