What’s an effective way to check if a value is not null and not an empty string in JavaScript?

General Discussions
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Totally agree with that. Coming from a few backend-heavy years, I also appreciate keeping checks lean where it makes sense. In some quick validations, I’ve used JavaScript’s truthy/falsy evaluation – but with a caveat. It checks if JavaScript is not null, undefined, empty string, 0, or false. So this works:"

if (data) {
  // do something
}

But heads-up: if 0 or false are valid values in your context, this might cause silent issues. So yeah—great for one-liners, but in team projects or form inputs, I still lean on that utility method or explicit checks.