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  1. const s = "𝚙𝚛𝚘𝚐𝚛𝚊𝚖𝚖𝚒𝚗𝚐 𝚌𝚑𝚊𝚕𝚕𝚎𝚗𝚐𝚎𝚜";
  2. console.log(s.split(/(?=.)/u).map(c => `&#${c.codePointAt()};`).join(""));
  3.  
Success #stdin #stdout 0.08s 29532KB
stdin
Standard input is empty
stdout
𝚙𝚛𝚘𝚐𝚛𝚊𝚖𝚖𝚒𝚗𝚐 𝚌𝚑𝚊𝚕𝚕𝚎𝚗𝚐𝚎𝚜