Node version not updating after “nvm use” on mac

Adding few notes about my experience on debugging this problem. First, I started out with the command provided by Jonathan which -a node and got the same output as op: /usr/local/bin/node /Users/<my-user>/.nvm/versions/node/v8.10.0/bin/node Moving on to the next comment by Jonathan: Have you installed Node via Homebrew as well?, I tried uninstalling node by brew uninstall … Read more

Why is process.env returning an empty object, while process.env.prop returns the prop value?

The issue with process.env variable being empty in browser is because browser doesn’t have real access to the process of the node.js. It’s run inside the browser though. Usage of process.env.ANYTHING is usually achieved by plugins like https://webpack.js.org/plugins/define-plugin/ which just simply replace any occurrence of process.env.ANYTINHG with env variable during BUILD time. It really does … Read more

Node.js JavaScript syntax [duplicate]

This is a self invoking anonymous function. This pattern is useful when you want to hide variables from the global namespace. (function(){ var foo = “foo”; })(); console.log(window.foo); // undefined Also see What do parentheses surrounding a JavaScript object/function/class declaration mean? What advantages does using (function(window, document, undefined) { … })(window, document) confer?

how to use top level async await with typescript?

Follow these steps: Add “type”: “module” to your package.json. Replace “main”: “index.js” with “exports”: “./index.js” in your package.json. Update the “engines” field in package.json to Node.js 12: “node”: “^12.20.0 || ^14.13.1 || >=16.0.0”. Add “module”: “ES2020” to your tsconfig.json. Use only full relative file paths for imports: import x from ‘.’; → import x from … Read more

Could not determine jupyterlab build status without nodejs

I ran into a similar issue this morning and ended up here. The diagnostic message appears to be harmless: [W 07:35:51.998 LabApp] Could not determine jupyterlab build status without nodejs However, the way I resolved it for my configuration (Windows 10, Anaconda distribution of Python 3.7) was to download NodeJS from the source. Choose the … Read more

What is the correct way to handle nested async await calls in Node? [duplicate]

Async/Await only works on functions that return (and resolve) a promise. The following example will write to the console after 3 seconds, and then continue on. // Tell the browser that this function is asynchronous async function myFunc() { // Await for the promise to resolve await new Promise((resolve) => { setTimeout(() => { // … Read more

node.js – what are the advantages of using jade

Jade has a cleaner, more readable syntax and comes with filters and helpers: https://github.com/visionmedia/jade#a7 If you’re going to migrate HTML files to jade, this converter might come handy: http://html2jade.aaron-powell.com/ …but you can also use HTML. app.set(‘view engine’, ‘html’); http://expressjs.com/guide.html#view-rendering I’m using EJS ( http://code.google.com/p/embeddedjavascript/) as the rendering engine in my express app, but keep a … Read more

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