Memory Leak in Database Connection
★★★☆☆
📁 facebook/react 🔢
abc1234 Memory Safety ★★★☆☆
Difficulty
+100 XP reward
file.js
| 1 | class DatabaseConnector { |
| 2 | constructor(url) { |
| 3 | this.url = url; |
| 4 | this.connection = null; |
| 5 | } |
| 6 | |
| 7 | connect() { |
| 8 | this.connection = createConnection(this.url); |
| 9 | } |
| 10 | |
| 11 | query(sql) { |
| 12 | return this.connection.execute(sql); |
| 13 | } |
| 14 | |
| 15 | disconnect() { |
| 16 | // Memory leak: connection never closed |
| 17 | } |
| 18 | } |
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