node.js series - solutions to common problems (continuously updated)

Question 1: How does nodejs use atob and btoa solutions (base64 and uint8array conversion), how should btoa and atob be written in nodejs?

``

In the browser we can use this:

btoa('123456')
'MTIzNDU2'
atob('MTIzNDU2')
'123456'

Implementation scheme in node.js

const btoaText = Buffer.from("123456").toString("base64");
console.log(btoaText); // MTIzNDU2
const atobText = Buffer.from("MTIzNDU2", "base64").toString("binary");
console.log(atobText); // 123456

Problem 2: A warning appears in node.js: ESLint - 'process' is not defined

solution:

Modify the eslint configuration file, for example: .eslintrc.js

module.exports = {
    "env": {
        "node": true,
        "es2021": true
    },
    "extends": "eslint:recommended",
    "overrides": [
        {
            "env": {
                "node": true
            },
            "files": [
                ".eslintrc.{js,cjs}"
            ],
            "parserOptions": {
                "sourceType": "script"
            }
        }
    ],
    "parserOptions": {
        "ecmaVersion": "latest",
        "sourceType": "module"
    },
    "rules": {
        
    }
}

Question 3: How does console.log become a colored log in node.js

npm install colors

usage plan

import colors from "colors";
 console.log(( "2023-08-02:  " + _).bgGreen);

to be added

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