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To use the `slice()` method in Rust, you first need to create a string. This can be done using the `String::from()` method:
let my_string = String::from("Hello, world!");
Once you have a string, you can use the `slice()` method to extract a section of it. The `slice()` method takes two arguments: the starting index and the ending index. The starting index is inclusive, while the ending index is exclusive. This means that the character at the starting index will be included in the slice, but the character at the ending index will not.
let my_slice = &my_string[0..5];
In this example, the slice will start at index 0 (the first character) and end at index 5 (the sixth character). This will result in a new string that contains the first five characters of the original string: “Hello”.
It’s important to note that the `slice()` method does not modify the original string. Instead, it returns a new string that contains the extracted section.