IntermediateStandard Library

Regex Find

Find a pattern in text using Regex.

kotlin
fun main() {
    val text = "Order ID: 12345"
    val regex = "\\d+".toRegex()
    val result = regex.find(text)?.value
    println(result)
}

Output

12345

Explanation

\d+ matches one or more digits. find() returns the first match. .value gives the matched string.