Dart – Convert All Characters of a String in Lowercase Improve Improve Like Article Like Save Share Report With the help of the toLowerCase() method in the string will convert all the characters in a string in lowercase. Syntax: String.toLowerCase() Return: string Example 1: Dart // main function start void main() { // initialise a string String st = "GEEKSFORGEEKS"; // print the string in lowercase print(st.toLowerCase()); } Output: geeksforgeeks Example 2: Dart // main function start void main() { // initialise a string String st = "Computer Science"; // print the string in lowercase print(st.toLowerCase()); } Output: computer science Last Updated : 16 Jul, 2021 Like Article Save Article Previous Exception Handling in Dart Next Fallthrough Condition in Dart Share your thoughts in the comments Add Your Comment Please Login to comment...