@nexssp/const

@nexssp/const

Constants in JavaScript (global, objects)

Installation

npm i @nexssp/const

nConst("MYCONST", "VALUE EVERYWERE"); // you cannot change it.

// You can use MYCONST everywere after nConst("MYCONST",...)
MYCONST = 1; // will terminate program with the message as below

Usage

Let say you have some kind of config file.

// config.js
const { nConst } = require("@nexssp/const");

nConst("MYCONST", "some value", process);
nConst("MYCONST2", "OLD CONSTANT VALUE");

const myConfig = {};
nConst("MyObjectCONST", "My old object const", myConfig);

module.exports = { myConfig };

All below will display error like:

// program.js

const { myConfig } = require("./config");

process.MYCONST = 369;
myConfig.MyObjectCONST = 999999;

MYCONST2 = 333366669999;

myObject.MYCONST = "New value1"; // Program terminated
MYCONST2 = "SOMETHING else";