35 lines
1.2 KiB
Rust
35 lines
1.2 KiB
Rust
// strings3.rs
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// This is a test for the following sections:
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// - Strings
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// Ok, here are a bunch of values-- some are `Strings`, some are `&strs`. Your
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// task is to call one of these two functions on each value depending on what
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// you think each value is. That is, add either `string_slice` or `string`
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// before the parentheses on each line. If you're right, it will compile!
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fn string_slice(arg: &str) {
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println!("{}", arg);
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}
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fn string(arg: String) {
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println!("{}", arg);
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}
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fn main() {
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// String slice references part of another data, and does not own the data
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// Starts as reference to static string in code
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string_slice("blue");
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// Create String object from a static string
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string("red".to_string());
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string(String::from("hi"));
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string("rust is fun!".to_owned());
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string("nice weather".into());
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// Interpolation used to combine multiple strings
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string(format!("Interpolation {}", "Station"));
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// Use of & or other functions to slice parts of a String
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string_slice(&String::from("abc")[0..1]);
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string_slice(" hello there ".trim());
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// Mutation of a String object / data
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string("Happy Monday!".to_string().replace("Mon", "Tues"));
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string("mY sHiFt KeY iS sTiCkY".to_lowercase());
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}
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