rustHow to format number to string in Rust

Formatting a number to a string in Rust can be done using the format! macro. This macro takes a format string and a list of arguments and returns a String object. The format string can contain special formatting characters that will be replaced with the corresponding argument.

Code example:

let num = 5;
let num_string = format!("The number is {}", num);

Output

The number is 5

Explanation:

• let num = 5;: This line declares a variable num and assigns it the value 5.
• let num_string = format!("The number is {}", num);: This line uses the format! macro to format the number 5 into a string. The {} in the format string is replaced with the value of num.
• The output of this code is The number is 5.

Helpful links:

• Rust Documentation - format!
• Rust by Example - format!

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