realitista@lemmy.world to Programmer Humor@lemmy.ml · 1 year agoPure Evillemmy.worldimagemessage-square13fedilinkarrow-up1183cross-posted to: [email protected]
arrow-up1108imagePure Evillemmy.worldrealitista@lemmy.world to Programmer Humor@lemmy.ml · 1 year agomessage-square13fedilinkcross-posted to: [email protected]
minus-squareangel@iusearchlinux.fyilinkfedilinkEnglisharrow-up18arrow-down1·edit-21 year agoAutomatic Semicolon Insertion (ASI) has (sadly) been a part of JavaScript longer than 2016. I’m not sure exactly when it was introduced, but this document from 2009 already contains it: https://web.archive.org/web/20120418215856/https://ecma262-5.com/ELS5_Section_7.htm#Section_7.9 IMO it’s bad practice to rely on ASI since the semicolons may not get inserted where you expected them to. The following snippet const x = 0 const y = x [1, 2, 3].forEach(console.log) is interpreted as const x = 0; const y = x[1, 2, 3].forEach(console.log); which raises a TypeError. There are more examples of ASI not doing the right thing on the web, so I don’t agree with “Javascript doesn’t need semicolon”.
minus-squarekinttach@lemm.eelinkfedilinkEnglisharrow-up4·1 year agoAs Mark Twain said, “Never discuss politics, semicolons, tabs, or religion in polite company.”
minus-squareflying_sheep@lemmy.mllinkfedilinkarrow-up2·1 year agoUse an autoformatter for all code (both in the editor on save/type and as CI check). There is no problem anymore.
Automatic Semicolon Insertion (ASI) has (sadly) been a part of JavaScript longer than 2016. I’m not sure exactly when it was introduced, but this document from 2009 already contains it: https://web.archive.org/web/20120418215856/https://ecma262-5.com/ELS5_Section_7.htm#Section_7.9
IMO it’s bad practice to rely on ASI since the semicolons may not get inserted where you expected them to. The following snippet
const x = 0 const y = x [1, 2, 3].forEach(console.log)is interpreted as
const x = 0; const y = x[1, 2, 3].forEach(console.log);which raises a
TypeError.There are more examples of ASI not doing the right thing on the web, so I don’t agree with “Javascript doesn’t need semicolon”.
As Mark Twain said, “Never discuss politics, semicolons, tabs, or religion in polite company.”
Use an autoformatter for all code (both in the editor on save/type and as CI check).
There is no problem anymore.