Embedded persistent or in memory database for Node.js, nw.js, Electron and browsers, 100% JavaScript, no binary dependency. API is a subset of MongoDB's and it's plenty fast.
This module implements some enhancements to nedb
To find the API you want, please visit the original README.md
Module name on npm and bower is nedb-enhanced.
npm install nedb-enhanced --save # Put latest version in your package.json
npm test # You'll need the dev dependencies to launch tests
bower install nedb-enhanced # For the browser versions, which will be in browser-version/out
- Add support for ES Module
- Add support for TypeScript
// Let's use a same example collection
// { _id: 'id1', points: 14 }
// { _id: 'id2', points: 16 }
// { _id: 'id3', points: 20 }
// { _id: 'id4', points: 22 }
// You can pass in a function or value for the $set field. When you pass in a function, the old value of the document will be passed for the first parameter of the function and the index of the current operation item will be passed for the second
// Pass a function into the $set field to ensure that the old value of each document can be obtained when updating it
// This operation is similar to setState in the React.js: this.setState((value) => value + 3), you can get the old value immediately
// In this example, we intend to increase the value of the points field of documents with points greater than 17 by 3
db.update({ $gt: { points: 17 } }, { $set: { points: (previous, index) => previous + 3 } } )
// We can obtain the following results through this operation:
// { _id: 'id1', points: 14 }
// { _id: 'id2', points: 16 }
// { _id: 'id3', points: 23 } <- Changed
// { _id: 'id4', points: 25 } <- ChangedSee License