You can await on Promise.all(): await Promise.all([someCall(), anotherCall()]); To store the results: let [someResult, anotherResult] = await Promise.all([someCall(), anotherCall()]); Note that Promise.all fails fast, which means that as soon as one of the promises supplied to it rejects, then the entire thing rejects. const happy = (v, ms) => new Promise((resolve) => setTimeout(() => resolve(v), … Read more
The npm install command will install the devDependencies along other dependencies when run inside a package directory, in a development environment (the default). In version 8.x and above use –omit=dev flag to install only regular dependencies: npm install –omit=dev This will install only dependencies, and not devDependencies, regardless of the value of the NODE_ENV environment … Read more
Use a package called concurrently. npm i concurrently –save-dev Then setup your npm run dev task as so: “dev”: “concurrently –kill-others \”npm run start-watch\” \”npm run wp-server\””
Using npm install installs the module into the current directory only (in a subdirectory called node_modules). Is app.js located under home/dave/src/server/? If not and you want to use the module from any directory, you need to install it globally using npm install -g. I usually install most packages locally so that they get checked in … Read more
For even newer version of Node.js (v8.1.4), the events and calls are similar or identical to older versions, but it’s encouraged to use the standard newer language features. Examples: For buffered, non-stream formatted output (you get it all at once), use child_process.exec: const { exec } = require(‘child_process’); exec(‘cat *.js bad_file | wc -l’, (err, … Read more
A good “ready-to-use tool” option could be http-server: npm install http-server -g To use it: cd D:\Folder http-server Or, like this: http-server D:\Folder Check it out: https://github.com/nodeapps/http-server
Sync: var fs = require(‘fs’); var obj = JSON.parse(fs.readFileSync(‘file’, ‘utf8’)); Async: var fs = require(‘fs’); var obj; fs.readFile(‘file’, ‘utf8’, function (err, data) { if (err) throw err; obj = JSON.parse(data); });
I hit the same error. I suspect you’re using Node.js 12 and Gulp.js 3. That combination does not work: Gulp.js 3 is broken on Node.js 12 #2324 A previous workaround from Jan. does not work either: After update to Node.js 11.0.0 running Gulp.js exits with ‘ReferenceError: internalBinding is not defined’ #2246 Solution: Either upgrade to … Read more
Update: Joyent now has their own guide. The following information is more of a summary: Safely “throwing” errors Ideally we’d like to avoid uncaught errors as much as possible, as such, instead of literally throwing the error, we can instead safely “throw” the error using one of the following methods depending on our code architecture: … Read more
babel-polyfill (deprecated as of Babel 7.4) is required. You must also install it in order to get async/await working. npm i -D babel-core babel-polyfill babel-preset-es2015 babel-preset-stage-0 babel-loader package.json “devDependencies”: { “babel-core”: “^6.0.20”, “babel-polyfill”: “^6.0.16”, “babel-preset-es2015”: “^6.0.15”, “babel-preset-stage-0”: “^6.0.15” } .babelrc { “presets”: [ “es2015”, “stage-0” ] } .js with async/await (sample code) “use strict”; export … Read more