Rust Tutorials

How to get Substring before Specific Character in Rust

How to get Substring before Specific Character in Rust ?

Answer

To get the substring before a specific character in Rust, you can use the `split` method to split the string at the specified character and then access the first part.

✐ Examples

1 Substring Before '/' in "https://example.com/page"

In this example,

We create a string reference named url with a value of "https://example.com/page".
We split the string at '/' using the split method.
We access the first part of the split, which gives us the substring before the specified character.
Finally, we display the substring.

Rust Program

fn main() {
    let url = "https://example.com/page";
    let parts: Vec<&str> = url.split('/').collect();
    let substring = parts[0];
    println!("Substring before '/': {}", substring);
}

Output

Substring before '/': https:

2 Substring Before ',' in "Hello,World"

In this example,

We create a string reference named str with a value of "Hello,World".
We split the string at ',' using the split method.
We access the first part of the split, which gives us the substring before the specified character.
Finally, we display the substring.

Rust Program

fn main() {
    let str = "Hello,World";
    let parts: Vec<&str> = str.split(',').collect();
    let substring = parts[0];
    println!("Substring before ',': {}", substring);
}

Output

Substring before ',': Hello

Summary

In this tutorial, we learned How to get Substring before Specific Character in Rust language with well detailed examples.

◀ Previous Next ▶

Rust Tutorials

Rust How-Tos

How to get Substring before Specific Character in Rust

How to get Substring before Specific Character in Rust ?

Answer

✐ Examples

1 Substring Before '/' in "https://example.com/page"

Rust Program

Output

2 Substring Before ',' in "Hello,World"

Rust Program

Output

Summary

More Rust Strings Tutorials