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  1. javascript - When should I use ?? (nullish coalescing) vs || (logical ...

    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 =

  2. What does the !! (double exclamation mark) operator do in …

    Novice JavaScript developers need to know that the "not not" operator is using implicitly the original loose comparison method instead of the exact === or !== operators and also the …

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

    Jun 7, 2011 · The conditional (ternary) operator is the only JavaScript operator that takes three operands. This operator is frequently used as a shortcut for the if statement.

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

    Mar 29, 2022 · Javascript does have types; and in any case, how is the dollar sign even related to that? It's just a character that happens to be a legal identifier in Javascript.

  5. 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 …

  6. Microsoft account requires JavaScript to sign in.

    Aug 27, 2022 · This web browser either does not support JavaScript or scripts are being blocked. To find out whether your browser supports JavaScripts, or to allow scripts, see the browser's …

  7. How to Fix a (javascript error occurred in the main process Error ...

    Dec 8, 2024 · I'm facing this error. Please someone tell me the solution to this error.

  8. What does "javascript:void (0)" mean? - Stack Overflow

    Aug 18, 2009 · Usage of javascript:void(0) means that the author of the HTML is misusing the anchor element in place of the button element. Anchor tags are often abused with the onclick …

  9. Which "href" value should I use for JavaScript links, "#" or ...

    Sep 26, 2008 · The following are two methods of building a link that has the sole purpose of running JavaScript code. Which is better, in terms of functionality, page load speed, validation …

  10. How can I convert a string to boolean in JavaScript?

    Nov 5, 2008 · Can I convert a string representing a boolean value (e.g., 'true', 'false') into an intrinsic type in JavaScript? I have a hidden form in HTML that is updated based on a user's …