What is the method in javascript to use regex for extracting a string between dashes?

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The method in javascript to use regex for extracting a string between dashes is using the match() method with a regular expression that matches the string between the dashes.

const str = "hello-world";
const regex = /-(.*)-/;
const result = str.match(regex)[1];
// result will be "world"

In this example, the regular expression /-(.*)-/ matches any characters between two dashes. The match() method returns an array with the entire matched string, followed by the matched capturing groups. The [1] at the end of the expression extracts the first capturing group, which is the string between the dashes.