Develop your own NPM package from 0

I've written a few before npm package , But every time I forget the specific process , Make a simple record today .

One 、 register npm account number

https://www.npmjs.com

Two 、 Develop your own npm package

1. initialization npm package

npm init

Generate package.json file

{
  "name": "create-random-value",
  "version": "1.0.0",
  "description": " Generate a random string of specified length by passing parameters ",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [
    "random",
    "string",
    "node",
    "vue"
  ],
  "author": "fujinting",
  "license": "ISC"
}

2. Development npm package

"use strict";

const number = "123467890";
const bigLetter = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
const smallLetter = "abcdefghijklmnopqrstuvwxyz";
const punctuation = "[email protected]#$%^&*()_+-=[]{}|;:,./<>?";

function random(length, option) {
  let char = "";
  let result = "";

  length || (length = 8);
  option || (option = {});

  if (option === true) {
    char = number + bigLetter + smallLetter + punctuation;
  } else if (typeof option == "string") {
    char = option;
  } else {
    if (option.number !== false) {
      char += typeof option.number == "string" ? option.number : number;
    }

    if (option.bigLetter !== false) {
      char +=
        typeof option.bigLetter == "string" ? option.bigLetter : bigLetter;
    }
    if (option.smallLetter !== false) {
      char +=
        typeof option.smallLetter == "string"
          ? option.smallLetter
          : smallLetter;
    }

    if (option.punctuation) {
      char +=
        typeof option.punctuation == "string"
          ? option.punctuation
          : punctuation;
    }
  }

  while (length > 0) {
    length--;
    result += char[Math.floor(Math.random() * char.length)];
  }
  return result;
}
module.exports = random;

This is based on the passed in parameter , Plug in for generating random strings , Use the document. The next article will give , You can also download and use .

3、 ... and 、 Upload npm package

If you are developing for the first time npm package , need npm adduser

Of course I'm not , So I just need npm login That's all right.

Input username,password ,email, At this time, ensure your npm Source ( Mirror image ) yes npm It's official https://registry.npmjs.org/, Not please Switch Oh , Otherwise, an error message will be given .

Next, use the command to release this package

npm publish

Four 、 Check it out

success!