CODEWITHSUNDEEP
regexdartflutterreplaceall
Shahzad Akram
Shahzad Akram

Reputation: 5294

How to replace Backslash '\' with double Backslash in Dart?

How to replace a Single Backslash '\' in a String with double Backslash '\' ?

I tried this, but its not working.

main(){
String string = "back\slash back\slash back\slash back\slash";
String replaced = string.replaceAll(RegExp(r'\\'), '\\\\');
print(replaced);
}

Upvotes: 7

Views: 11387

Answers (1)

Günter Zöchbauer
Günter Zöchbauer

Reputation: 658253

The problem is that the string string does not contain any \

It would either need to be 

String string = r"back\slash back\slash back\slash back\slash";

or

String string = "back\\slash back\\slash back\\slash back\\slash";

In your example there also is no need for RegExp. Just

String replaced = string.replaceAll(r'\', r'\\');

would do as well.

Upvotes: 19

Related Questions