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Muhammed Mukhthar CM

Convert String to Lower Case and Upper Case in Dart

Aug 22, 20211 min read

The Dart language has simple ways to change the cases of Strings.

To convert a given string to lower case, we can use the toLowerCase() method. It will convert all the characters in the given string to lower case.

String givenString = "This MAy LoOk aWkwaRd";

var resultantString = givenString.toLowerCase(); //
print(resultantString); // "this may look awkward"

The above code will print this may look awkward to the console.

Similarly, To convert a given string to upper case, we can use the toUpperCase method. It will convert all the characters in the given string to upper case.

String givenString = "This MAy LoOk aWkwaRd";

var resultantString = givenString.toUpperCase(); //
print(resultantString); // "THIS MAY LOOK AWKWARD"

The above code will print THIS MAY LOOK AWKWARD to the console.

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