📅  最后修改于: 2023-12-03 15:30:23.289000             🧑  作者: Mango
If you're looking for a lightweight, serverless JSON database solution for your JavaScript projects, db.json is a great option to consider. With no configuration or setup required, you can immediately start using db.json to store and retrieve data in your applications.
To get started with db.json, simply download the library from the official GitHub repository and include it in your project:
<script src="path/to/db.json.js"></script>
You can also install db.json using npm:
npm install db.json --save
Here's an example of how to use db.json to store and retrieve data:
// Initialize the database
var db = new DbJson();
// Insert a record
db.insert({ name: "John Doe", age: 42 });
// Query the database
var result = db.query(function(record) {
return record.age > 30;
});
// Print the results
console.log(result);
// Output: [{ name: "John Doe", age: 42 }]
Creates a new db.json instance.
Inserts a record into the database.
record
(object): The record to insert.Returns the number of records in the database.
Queries the database and returns the results.
callback
(function): A function to evaluate each record. Should return true
if the record matches the query, false
otherwise.Clears all records from the database.
With its simplicity, flexibility, and lightweight design, db.json is a fantastic option for any JavaScript project that needs to store and retrieve data. Whether you're building a small web app or a large-scale enterprise application, db.json is a reliable and efficient solution that can help you get the job done quickly and easily.