How to get First N Characters in String in Rust - Step by Step Examples

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How to get First N Characters in String in Rust ?

Answer

In Rust, you can use string slicing to get the first N characters from a string.

✐ Examples

1 First 5 Characters of "Hello World" String

In this example,

We create a string named str with a value of "Hello World".
We use string slicing with &str[0..5] to get the first 5 characters.
Finally, we print the first 5 characters.

Rust Program

fn main() {
    let str = String::from("Hello World");
    let first5Chars = &str[0..5];
    println!("First 5 characters of the string are: {}", first5Chars);
}

Output

First 5 characters of the string are: Hello

2 First 3 Characters of "apple" String

In this example,

We create a string named str with a value of "apple".
We use string slicing with &str[0..3] to get the first 3 characters.
Finally, we print the first 3 characters.

Rust Program

fn main() {
    let str = String::from("apple");
    let first3Chars = &str[0..3];
    println!("First 3 characters of the string are: {}", first3Chars);
}

Output

First 3 characters of the string are: app

Summary

In this tutorial, we learned How to get First N Characters in String in Rust language with well detailed examples.

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How to get First N Characters in String in Rust - Step by Step Examples

How to get First N Characters in String in Rust ?

Answer

✐ Examples

1 First 5 Characters of "Hello World" String

Rust Program

Output

2 First 3 Characters of "apple" String

Rust Program

Output

Summary

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