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[-] Skullgrid@lemmy.world 1 points 6 months ago

ah ok , I think I write this a bit more verbose when using other languages, instead of

if(thing)
{
   stuff;
}

I do


if(thing != null)
{
   stuff;
}

so checking for numbers being truthy & existing didn't seem like an issue

[-] joneskind@lemmy.world 1 points 6 months ago* (last edited 6 months ago)

In the case of a non-existing property, the value would be undefined rather than null.

And while == and != exist in JavaScript, most linters will throw an error and require a === and !== instead as they should be avoided.

null == undefined // true
null === undefined // false

Besides, null is a perfectly valid value for a property, just as 0. Working with API Platform, I couldn't tell the number of times I used this kind of statement:

if (property || property === null) {
  // do some stuff
}

Probably just as much as

if (property || property === 0) {
  // do some stuff
}
this post was submitted on 21 Apr 2024
718 points (97.0% liked)

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