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nodebestpractices | js best practices list | Runtime Evironment library

 by   goldbergyoni JavaScript Version: Current License: CC-BY-SA-4.0

 by   goldbergyoni JavaScript Version: Current License: CC-BY-SA-4.0

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kandi X-RAY | nodebestpractices Summary

nodebestpractices is a JavaScript library typically used in Server, Runtime Evironment, Nodejs, Express.js, Jest applications. nodebestpractices has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has medium support. You can download it from GitHub.
:white_check_mark: The Node.js best practices list (February 2022)
Support
Support
Quality
Quality
Security
Security
License
License
Reuse
Reuse

kandi-support Support

  • nodebestpractices has a medium active ecosystem.
  • It has 76719 star(s) with 7898 fork(s). There are 1749 watchers for this library.
  • It had no major release in the last 12 months.
  • There are 28 open issues and 263 have been closed. On average issues are closed in 137 days. There are 7 open pull requests and 0 closed requests.
  • It has a neutral sentiment in the developer community.
  • The latest version of nodebestpractices is current.
nodebestpractices Support
Best in #Runtime Evironment
Average in #Runtime Evironment
nodebestpractices Support
Best in #Runtime Evironment
Average in #Runtime Evironment

quality kandi Quality

  • nodebestpractices has 0 bugs and 0 code smells.
nodebestpractices Quality
Best in #Runtime Evironment
Average in #Runtime Evironment
nodebestpractices Quality
Best in #Runtime Evironment
Average in #Runtime Evironment

securitySecurity

  • nodebestpractices has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • nodebestpractices code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
nodebestpractices Security
Best in #Runtime Evironment
Average in #Runtime Evironment
nodebestpractices Security
Best in #Runtime Evironment
Average in #Runtime Evironment

license License

  • nodebestpractices is licensed under the CC-BY-SA-4.0 License. This license is Strong Copyleft.
  • Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.
nodebestpractices License
Best in #Runtime Evironment
Average in #Runtime Evironment
nodebestpractices License
Best in #Runtime Evironment
Average in #Runtime Evironment

buildReuse

  • nodebestpractices releases are not available. You will need to build from source code and install.
  • Installation instructions are not available. Examples and code snippets are available.
nodebestpractices Reuse
Best in #Runtime Evironment
Average in #Runtime Evironment
nodebestpractices Reuse
Best in #Runtime Evironment
Average in #Runtime Evironment
Top functions reviewed by kandi - BETA

kandi has reviewed nodebestpractices and discovered the below as its top functions. This is intended to give you an instant insight into nodebestpractices implemented functionality, and help decide if they suit your requirements.

  • Traverse MDAST
  • Include references in a file
  • Traverse all scripts in an external file .
  • Gets config from github environment .
  • inline images in html
  • Fix md - references to markdown paths
  • Fix href attributes to hash
  • Promise writeFile
  • Read file contents
  • helper function to readdir

nodebestpractices Key Features

:white_check_mark: The Node.js best practices list (March 2022)

Code Example

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// Do
function someFunction() {
  // code block
}

// Avoid
function someFunction()
{
  // code block
}

Code example

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// Do
function doThing() {
    // ...
}

doThing()

// Do

const items = [1, 2, 3]
items.forEach(console.log)

// Avoid — throws exception
const m = new Map()
const a = [1,2,3]
[...m.values()].forEach(console.log)
> [...m.values()].forEach(console.log)
>  ^^^
> SyntaxError: Unexpected token ...

// Avoid — throws exception
const count = 2 // it tries to run 2(), but 2 is not a function
(function doSomething() {
  // do something amazing
}())
// put a semicolon before the immediate invoked function, after the const definition, save the return value of the anonymous function to a variable or avoid IIFEs altogether

3.6 Code Example

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// for global variables names we use the const/let keyword and UPPER_SNAKE_CASE
let MUTABLE_GLOBAL = "mutable value"
const GLOBAL_CONSTANT = "immutable value";
const CONFIG = {
  key: "value",
};

// examples of UPPER_SNAKE_CASE convetion in nodejs/javascript ecosystem
// in javascript Math.PI module
const PI = 3.141592653589793;

// https://github.com/nodejs/node/blob/b9f36062d7b5c5039498e98d2f2c180dca2a7065/lib/internal/http2/core.js#L303
// in nodejs http2 module
const HTTP_STATUS_OK = 200;
const HTTP_STATUS_CREATED = 201;

// for class name we use UpperCamelCase
class SomeClassExample {
  // for static class properties we use UPPER_SNAKE_CASE
  static STATIC_PROPERTY = "value";
}

// for functions names we use lowerCamelCase
function doSomething() {
  // for scoped variable names we use the const/let keyword and lowerCamelCase
  const someConstExample = "immutable value";
  let someMutableExample = "mutable value";
}

3.9 Code example

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// Do
module.exports.SMSProvider = require("./SMSProvider");
module.exports.SMSNumberResolver = require("./SMSNumberResolver");

// Avoid
module.exports.SMSProvider = require("./SMSProvider/SMSProvider.js");
module.exports.SMSNumberResolver = require("./SMSNumberResolver/SMSNumberResolver.js");

3.10 Code example

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"" == "0"; // false
0 == ""; // true
0 == "0"; // true

false == "false"; // false
false == "0"; // true

false == undefined; // false
false == null; // false
null == undefined; // true

" \t\r\n " == 0; // true

Example Dockerfile for multi-stage builds

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FROM node:14.4.0 AS build

COPY . .
RUN npm ci && npm run build


FROM node:slim-14.4.0

USER node
EXPOSE 8080

COPY --from=build /home/node/app/dist /home/node/app/package.json /home/node/app/package-lock.json ./
RUN npm ci --production

CMD [ "node", "dist/app.js" ]

Express: Specify HTTP status code when throwing error in service

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let err = new Error('No user with this ID exists');
err.status = 404;
throw err;
function error(msg, status = 500) {
    let err = new Error('No user with this ID exists');
    err.status = status;
    throw err;
}
class MyError extends Error {
    constructor(msg, status = 500) {
        super(msg);
        this.status = status;
    }
}
throw new MyError('No user with this ID exists', 404);
-----------------------
let err = new Error('No user with this ID exists');
err.status = 404;
throw err;
function error(msg, status = 500) {
    let err = new Error('No user with this ID exists');
    err.status = status;
    throw err;
}
class MyError extends Error {
    constructor(msg, status = 500) {
        super(msg);
        this.status = status;
    }
}
throw new MyError('No user with this ID exists', 404);
-----------------------
let err = new Error('No user with this ID exists');
err.status = 404;
throw err;
function error(msg, status = 500) {
    let err = new Error('No user with this ID exists');
    err.status = status;
    throw err;
}
class MyError extends Error {
    constructor(msg, status = 500) {
        super(msg);
        this.status = status;
    }
}
throw new MyError('No user with this ID exists', 404);
-----------------------
let err = new Error('No user with this ID exists');
err.status = 404;
throw err;
function error(msg, status = 500) {
    let err = new Error('No user with this ID exists');
    err.status = status;
    throw err;
}
class MyError extends Error {
    constructor(msg, status = 500) {
        super(msg);
        this.status = status;
    }
}
throw new MyError('No user with this ID exists', 404);

Community Discussions

Trending Discussions on nodebestpractices
  • Express: Specify HTTP status code when throwing error in service
Trending Discussions on nodebestpractices

QUESTION

Express: Specify HTTP status code when throwing error in service

Asked 2020-May-15 at 21:34

I want to return the correct HTTP status code to the client when one of my services fails.

Lets assume we have a simple express app where a service getUserById(userId) {...} is called from a controller. The service could fail for several reasons, e.g. an invalid user id, some bug in the code or simply because no user with the given id exists. To return the correct HTTP status code (400, 500 and 404 respectively) I would somehow need to attach it to the error when I throw it from within my service. How do I do this and are there any best practices? Or did I misunderstand something entirely?

So far I have simply done it like this:

throw { message: 'No user with this ID exists', status: 404 }

I do feel however that this is not very maintainable considering that one should only throw standard errors.

ANSWER

Answered 2020-May-15 at 21:34

You can create an error object and then just add custom properties to it.

let err = new Error('No user with this ID exists');
err.status = 404;
throw err;

Or, I often encapsulate that in a function:

function error(msg, status = 500) {
    let err = new Error('No user with this ID exists');
    err.status = status;
    throw err;
}

Or, you can make your own subclass of Error

class MyError extends Error {
    constructor(msg, status = 500) {
        super(msg);
        this.status = status;
    }
}

And then use it:

throw new MyError('No user with this ID exists', 404);

Source https://stackoverflow.com/questions/61828539

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install nodebestpractices

You can download it from GitHub.

Support

If you've ever wanted to contribute to open source, now is your chance! See the contributing docs for more information.

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