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 …

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 =

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 …

This function below doesn’t work like I want it to; being a JS novice I can’t figure out why. I need it to wait 5 seconds before checking whether the newState is -1. Currently, it doesn’t wait, i...

How can I check for null values in JavaScript? I wrote the code below but it didn't work.

In absence of OP's clarification, this question could be interpreted in the sense of converting any string to a number, i.e. turning "dog" into a number (which of course can be done).

Learn how to validate empty input fields using JavaScript in this Stack Overflow discussion, including code examples and best practices.

Learn how to populate a dropdown list with an array using JavaScript on Stack Overflow.

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 …

I need to convert strings to some form of hash. Is this possible in JavaScript? I'm not utilizing a server-side language so I can't do it that way.