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 …
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 …
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 …
How do you use the ? : (conditional) operator in JavaScript?
Jun 7, 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 …
What does % do in JavaScript? - Stack Overflow
Jan 17, 2012 · What does the % do in JavaScript? A definition of what it is and what it does would be much appreciated.
How to use OR condition in a JavaScript IF statement?
Mar 2, 2010 · How to use OR condition in a JavaScript IF statement? Asked 15 years, 10 months ago Modified 2 years, 11 months ago Viewed 880k times
Autoriser JavaScript dans votre navigateur - Google Help
Sélectionnez Les sites peuvent utiliser JavaScript comme comportement par défaut. Dans cet écran, vous pouvez également ajouter des sites qui ne sont pas autorisés à utiliser JavaScript, …
Why would a JavaScript variable start with a dollar sign?
I quite often see JavaScript with variables that start with a dollar sign. When/why would you choose to prefix a variable in this way? (I'm not asking about $('p.foo') syntax that you see in …
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 …
JavaScript: undefined !== undefined? - Stack Overflow
Apr 22, 2009 · The biggest misconception in many of the answers here is that 'undefined' is a Javascript keyword. It's not a keyword at all, but a variable that (most of the time) happens to …