Question: if ( inputElement . id = = bookingreference ) { / / ^ $ = anchors, [ a - zA - Z ] = letters,

if (inputElement.id == "bookingreference"){
//^$ = anchors, [a-zA-Z]= letters, {3}=3 of them, -= a hyphen, [0-9]= digits, {5}=5 of them
pattern =/^[a-zA-Z]{3}-[0-9]{5}$/;
feedback = "Only valid booking references are permitted";
}

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