• Skullgrid@lemmy.world
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    8 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
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      8 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
      }