fork(1) download 
  1.  
  2.  
  3. var str = "AAACDEAAAABBBUUDD";
  4. var res = str.replace( /(.)\1{2,}/g, "<b>$&</b>");
  5. print( res );
Success #stdin #stdout 0s 172608KB
comments (?)
stdin 
Standard input is empty
stdout 
<b>AAA</b>CDE<b>AAAA</b><b>BBB</b>UUDD
https://ideone.com/MQSNca
language:
JavaScript (SMonkey 60.2.3)
created:
7 years ago
visibility:
public

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