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  1. Which equals operator (== vs ===) should be used in JavaScript ...

    Dec 11, 2008 · I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals signs) when doing things like comparing …

  2. How do you use the ? : (conditional) operator in JavaScript?

    Jun 7, 2011 · It's a little hard to google when all you have are symbols ;) The terms to use are "JavaScript conditional operator". If you see any more funny symbols in JavaScript, you should try …

  3. When should I use ?? (nullish coalescing) vs || (logical OR)?

    Related to Is there a "null coalescing" operator in JavaScript? - JavaScript now has a ?? operator which I see in use more frequently. Previously most JavaScript code used ||. let userAge =

  4. What does the !! (double exclamation mark) operator do in JavaScript ...

    It converts a nonboolean to an inverted boolean (for instance, !5 would be false, since 5 is a non-false value in JS), then boolean-inverts that so you get the original value as a boolean (so !!5 would be true).

  5. Upgrading Node.js to the latest version - Stack Overflow

    For Windows users, simply go to the Node.js (nodejs.org) website and download the latest version (8.6.0 as of 2017-09-29). Follow the steps from the auto install window and you're good to go.

  6. How can I update Node.js and npm to their latest versions?

    How to update Node.js To update Node.js itself, I recommend you use nvm (Node Version Manager). Here is the quote from the official npm documentation: We strongly recommend using a Node …

  7. How do I include a JavaScript file in another JavaScript file?

    Jun 4, 2009 · It includes a main.js file in the main HTML and then the script in main.js uses $.import_js() to import an additional file called included.js, which defines this function:

  8. What is the purpose of the dollar sign in JavaScript?

    Mar 29, 2022 · A '$' in a variable means nothing special to the interpreter, much like an underscore. From what I've seen, many people using jQuery (which is what your example code looks like to me) …

  9. What is the difference between .js and .mjs files?

    Aug 14, 2019 · Node.js, a JavaScript runtime environment, used CommonJS as the specification for modules. Because so many existing applications were built with CommonJS, when Node.js added …

  10. javascript - How to play audio? - Stack Overflow

    I am making a game with HTML5 and JavaScript. How could I play game audio via JavaScript?