This combined with the fact that it is the frontend language and therefore every junior programmer in existence learns it means that a ton of JS you encounter in the wild is just absolute garbage. It's also closely linked with the endless bullshittery of the modern web where a single browser tab takes up 2gb of RAM.
This combined with the fact that it is the frontend language and therefore every junior programmer in existence learns it means that a ton of JS you encounter in the wild is just absolute garbage. It's also closely linked with the endless bullshittery of the modern web where a single browser tab takes up 2gb of RAM.
My favorite thing about JS is that it has true and false evaluations that are more guidelines than rules
Pop quiz:
Which is true and which is false?
a)
"false" == trueb)
"0" == truec)
[] == trued)
" " == true(They're all true)
That is horrifying.
I still think JS is an incredibly useful language, but god damn is the concept of "truthy" and "falsey" just insane.
I disagree, I think python handles it pretty well. JS just has some pretty bad rules for truthiness.
In python:
numbers are truthy if they're non-zero
containers and strings are truthy if they are non-empty
a regex result is truthy if it matched something
the None object is not truthy
custom objects are truthy by default, but you can define the thruthiness function
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The takeaway is that you should always use
===in JS loldeleted by creator
Just passing empty lists and the integer 0 into random fields.