string tolower 28 29 js

1var str = "My Big Boy!"
2var res = str.toLowerCase(); //res is "my big boy!"

1var str = "ExaMple";
2var res = str.toLowerCase();
3output res -> "example"

1const str = "Hello world!";
2console.log(str); //Output: "Hello world!"
3const String = str.toLowerCase();
4console.log(String) //Output: "hello world!"

1
2string.toLowerCase(2)

1const sentence = 'The quick brown fox jumps over the lazy dog.';
2console.log(sentence.toLowerCase());