rustHow to replace all using regex in Rust?
Regex in Rust can be used to replace all occurrences of a pattern in a string. To do this, the replace_all
method can be used.
let s = "Hello, world!";
let replaced = s.replace_all("world", "Rust");
println!("{}", replaced);
Output example
Hello, Rust!
The replace_all
method takes two parameters: a pattern and a replacement string. The pattern is a regular expression, and the replacement string is the string that will be used to replace all occurrences of the pattern.
Code explanation
let s = "Hello, world!";
: This line declares a variables
and assigns it the value"Hello, world!"
.let replaced = s.replace_all("world", "Rust");
: This line calls thereplace_all
method on thes
variable, passing in the pattern"world"
and the replacement string"Rust"
.println!("{}", replaced);
: This line prints the value of thereplaced
variable, which is the result of thereplace_all
method.
Helpful links
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See more codes...