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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 "javascript:void (0)" mean? - Stack Overflow

    18 aug. 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 …

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

    11 dec. 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 …

  4. JavaScript OR (||) variable assignment explanation - Stack Overflow

    That is, JavaScript "short-circuits" the evaluation of Boolean operators and will return the value associated with either the first non-false variable value or whatever the last variable contains. …

  5. How to remove all event listeners of a DOM object in JavaScript?

    In this case we just need to right click on the input field, select "Inspect element" in a browser like Firefox and remove the HTML attribute. However, if the event was added through JavaScript …

  6. What is the difference between != and !== operators in JavaScript?

    11 dec. 2009 · What is the difference between the !== operator and the != operator in JavaScript? Does it behave similarly to the === operator where it compares both value and type?

  7. 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 …

  8. Newest 'javascript' Questions - Stack Overflow

    JavaScript (a dialect of ECMAScript) is a high-level, multi-paradigm, object-oriented, prototype-based, dynamically-typed, and interpreted language traditionally used for client-side scripting in …

  9. What is the correct way to check for string equality in JavaScript ...

    In all other cases, you're safe to use ==. Not only is it safe, but in many cases it simplifies your code in a way that improves readability. I still recommend Crockford's talk for developers who …

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

    7 jun. 2011 · 27 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 …