Nice. Check this out
const withUndefined = [ 'this', 'is', 'an', 'array', 'of', undefined, 'strings' ] const withoutUndefined = withUndefined.filter((str) => str)
The idea is that the return value of the callback is truthy or falsy
Yep. Using an identity function like that with filter will remove anything 'falsy' from the array:
filter
arr.filter(i => i)
Also, you don't need the parentheses around the first str in your example
str
Sure. I wrote this and copied it from a linted editor, that's why. I also think it is more readable with the parentheses Thanks
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Nice. Check this out
The idea is that the return value of the callback is truthy or falsy
Yep. Using an identity function like that with
filterwill remove anything 'falsy' from the array:Also, you don't need the parentheses around the first
strin your exampleSure. I wrote this and copied it from a linted editor, that's why.
I also think it is more readable with the parentheses
Thanks