return2ozma@lemmy.world to politics @lemmy.world · 1 year agoTexas Governor Greg Abbott declares that Texas law supercedes Federal authority and hints at secessionboingboing.netexternal-linkmessage-square330fedilinkarrow-up1807arrow-down123
arrow-up1784arrow-down1external-linkTexas Governor Greg Abbott declares that Texas law supercedes Federal authority and hints at secessionboingboing.netreturn2ozma@lemmy.world to politics @lemmy.world · 1 year agomessage-square330fedilink
minus-squareWrench@lemmy.worldlinkfedilinkarrow-up4arrow-down1·1 year agoNo one checks those values explicitly. if (str) checks if it’s not null, undefined, or empty string. Optional chaining like if (arr?.length) checks if list is undefined, null, or empty array. Falsy and truthy comparators seem fucky in the beginning when coming from a strongly typed language. But they’re very convenient when used properly.
minus-squareRandelung@lemmy.worldlinkfedilinkarrow-up1·1 year agoMonads exist, optional chaining has been around for ages, and implicit bool casts, too. As you said, no one checks those values explicitly.
No one checks those values explicitly.
if (str)checks if it’s not null, undefined, or empty string.Optional chaining like
if (arr?.length)checks if list is undefined, null, or empty array.Falsy and truthy comparators seem fucky in the beginning when coming from a strongly typed language. But they’re very convenient when used properly.
Monads exist, optional chaining has been around for ages, and implicit bool casts, too.
As you said, no one checks those values explicitly.