Data

Installation

Install the package normally using NPM or Yarn.

# Npm
npm i @depax/data

# Yarn
yarn add @depax/data

Usage

import Data from "@depax/data";

const myData = new Data({
    value1: "hello",
    value2: { value3: "world" }
});

// "hello"
console.info(myData.get("value1"));

// "world"
console.info(myData.get("value2.value3"));

// null
console.info(myData.get("value3"));

// "hello world"
console.info(myData.get("value3", "hello world"));

The Data class provides get, set, del and has methods to get, set, delete and check for properties.

import Data from "@depax/data";

// Create the Data object, and use '.' for the deliminator.
const myData = new Data({}, ".");

// false
myData.has("value1");

// null
myData.get("value1");
myData.set("value1", "hello world");

// true
myData.has("value1");

// "hello world"
myData.get("value1");
myData.del("value1");

// false
myData.has("value1");

// null
myData.get("value1");

// false
myData.has("value2.something");
myData.set("value2.something", "foo");

// { "something": "foo" }
myData.get("value2");

Setting the data using the Data object also updates the provided data object, for example:

import Data from "@depax/data";

const data = {};
const myData = new Data(data);

myData.set("value1.value2", "hello world");

// { "value1": { "value2": "hello world" } }
console.dir(data);

Finally, you can also create references from a larger data object, which will kepp each other updated:

import Data from "@depax/data";

const data = {
    "settings": {
        "module1": {
            "value1": "hello world"
        },
        "module2": {
            "value1": "foo bar"
        }
    }
};
const myData = new Data(data);

let ref1 = myData.ref("settings.module1");
let ref2 = myData.ref("settings.module2");

// "hello world"
console.info(myData.get("settings.module1.value1"));
console.info(ref1.get("value1"));

// "foo bar"
console.info(myData.get("settings.module2.value1"));
console.info(ref2.get("value1"));

ref1.set("value1", "foo bar");

// "foo bar"
console.info(myData.get("settings.module1.value1"));
console.info(ref1.get("value1"));

// "foo bar"
console.info(myData.get("settings.module2.value1"));
console.info(ref2.get("value1"));

// {"settings": {"module1": {"value1": "foo bar"}}, "module2": {"value1": "foo bar"}}}
console.dir(data);

Config: Loading and saving

There is also a Config class which provides a means to load and save the data to a JSON or YAML file.

Note: Comments are supported in the JSON file, however they will not be restored when the config file is saved again.

import { Config } from "@depax/data";

const data = new Config("path/to/config-file.json");
// or, for YAML;
// const data = new Config("path/to/config-file.yaml");

await config.load();

config.set("value1", "hello");
await config.save();