Expands on Handling required parameters in ECMAScript 6 by Axel Rauschmayer.
The idea (which is credited to Allen Wirfs-Brock) is, in essence, to use default parameter values to call a function which throws an Error if the parameter is missing:
const throwIfMissing () => { throw new Error('Missing parameter') }
| <!doctype html> | |
| <html lang="en"> | |
| <!--한글은 lang="ko" Learn more : https://www.w3.org/International/questions/qa-html-language-declarations--> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title></title> | |
| <meta name="description" content=""> | |
| <meta name="author" content=""> | |
| <meta name="keywords" content=""> | |
| <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0"> |
| 'use strict'; | |
| // simple express server | |
| var express = require('express'); | |
| var app = express(); | |
| var router = express.Router(); | |
| app.use(express.static('public')); | |
| app.get('/', function(req, res) { | |
| res.sendfile('./public/index.html'); |
| log.trace("A Trace msg"); | |
| log.debug("A Debug msg"); | |
| log.info("An Info msg"); | |
| log.warn("A Warn msg"); | |
| log.error("An Error msg"); |
| <?xml version="1.0" encoding="UTF-8"?> | |
| <code_scheme name="GoogleStyle_SK"> | |
| <option name="OTHER_INDENT_OPTIONS"> | |
| <value> | |
| <option name="INDENT_SIZE" value="4" /> | |
| <option name="CONTINUATION_INDENT_SIZE" value="4" /> | |
| <option name="TAB_SIZE" value="4" /> | |
| <option name="USE_TAB_CHARACTER" value="true" /> | |
| <option name="SMART_TABS" value="false" /> | |
| <option name="LABEL_INDENT_SIZE" value="0" /> |
| #!/usr/bin/env python | |
| # Reflects the requests from HTTP methods GET, POST, PUT, and DELETE | |
| # Written by Nathan Hamiel (2010) | |
| from BaseHTTPServer import HTTPServer, BaseHTTPRequestHandler | |
| from optparse import OptionParser | |
| class RequestHandler(BaseHTTPRequestHandler): | |
| def do_GET(self): |
| public class Formatter { | |
| /** | |
| * The next piece of code is not formatted | |
| * because of the @formatter annotations. | |
| */ | |
| // @formatter:off | |
| public void nonFormattedMethod() { | |
| int sum = 1 + 2 + 3 + 4 + 5; | |
| } |
| # Explanation : https://blog.1234.co.kr/2021/07/24/jenkins-as-a-docker-container-agent-role/ | |
| FROM ubuntu:20.04 | |
| # First off, replace ubuntu repository for fast download. | |
| # Check the official ubuntu repository mirror site | |
| # https://launchpad.net/ubuntu/+archivemirrors | |
| RUN sed --in-place 's/archive.ubuntu.com/mirror.kakao.com/g' /etc/apt/sources.list | |
| RUN apt update && apt upgrade -y |
| const time_start = new Date().getTime(); | |
| // some function | |
| const time_end = new Date().getTime(); | |
| console.log(`search elapsed time ==> ${(time_end - time_start) / 1000}s`); |