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JSON Lines
SON Lines, often abbreviated as JSONL, is a format for storing structured data that consists of multiple JSON objects, each serialized on a separate line. In other words, it's a way of representing JSON data where each line of a file contains a valid JSON object. JSON Lines is commonly used for working with streaming data or handling large datasets efficiently.
- Each line represents a separate JSON object.
- Each JSON object is self-contained and follows the syntax rules of standard JSON.
- There are no enclosing square brackets [ and ] around the entire dataset, as you would find in a typical JSON array.
JSON Lines is particularly useful in scenarios where:
- Streaming Data: It allows for easy processing of data as it's received or generated, line by line. This is advantageous for real-time data processing or working with data streams.
- Large Datasets: JSON Lines can efficiently handle large datasets because each object is stored independently on a single line. This makes it easier to read and write data in chunks without needing to load the entire dataset into memory.
- Error Handling: In case of errors or corrupt data within a file, it's easier to identify and handle problematic lines individually, rather than dealing with the entire file as a single unit.
- Compatibility: JSON Lines is supported by many programming languages and tools, making it a versatile and widely adopted format for various data processing tasks.
Overall, JSON Lines provides a simple yet effective way to serialize structured data into a format that is easy to work with, especially in scenarios involving streaming or handling large datasets.
Here's an simple example of a JSONL file:
js
{"name": "John", "age": 30, "city": "New York"}
{"name": "Alice", "age": 25, "city": "Los Angeles"}
{"name": "Bob", "age": 35, "city": "Chicago"}