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3 matches found for 'nodejs'

npm and Node.js Management

npm packages install and save Install a package and also write it to package.json under "dependencies":{} npm install <PACKAGE> --save Alternatively, for developer dependencies: npm install <PACKAGE> --save-dev or npm i -D <PACKAGE> npm install, update, run (outside of current directory) npm install --prefix <PATH to directory> npm update --prefix <directory> npm run --prefix <script defined in package.

September 2, 2017

Asynchrony vs. Multithreading

Asynchrony Asynchronous programming, also known as event-driven programming, is built on foundations of Futures/promises. The basic idea is that instead of having a thread wait for a blocked call to finish (i.

June 20, 2020

Javascript Essentials

Hoisting Hoisting is JavaScript's default behavior of moving declarations to the top. Given the following Javascript code, what is the expected output, and why? fcn2(); fcn1(); function fcn2(){ alert("hi"); } var fcn1 = function(){ alert("hey") } The expected output is a pop up alert that says "hi", followed by an error that fcn1 isn't defined.

November 12, 2017