about String.sub

[Kyung won Cheon]

in javascript

var str = "aaa(xxx)bbb"
str.replace(/aaa\((.+)\)bbb/, 'AAA(' + '$1' + ')BBB') // "AAA(xxx)BBB"


in ruby

How???

 

[Peña, Botp]

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aW4gamF2YXNjcmlwdA0KIyB2YXIgc3RyID0gImFhYSh4eHgpYmJiIg0KIyBzdHIucmVwbGFjZSgv
YWFhXCgoLispXCliYmIvLCAnQUFBKCcgKyAnJDEnICsgJylCQkInKSAgLy8gDQoNCiAgICAgICAg
ICAgICAgICAgICAgICAgICAgICAgd2F0Y2ggb3V0ICAgXl5eXg0KDQojICJBQUEoeHh4KUJCQiIN
CiMgaW4gcnVieSBIb3c/Pz8NCg0Kc2VlIGh0dHA6Ly9ydWJ5LWRvYy5vcmcvY29yZS9jbGFzc2Vz
L1N0cmluZy5odG1sI00wMDA4MzENCg==

 

[Thomas B.]

in javascript

var str = "aaa(xxx)bbb"
str.replace(/aaa\((.+)\)bbb/, 'AAA(' + '$1' + ')BBB') // "AAA(xxx)BBB"


in ruby

How???

str.sub!(/aaa\((.+)\)bbb/){'AAA(' + $1 + ')BBB'}

TPR