JSFiddle - React, Tailwind, and code Playground
JavaScript
var str='Data Transfer - Noncompliance - with data - privacy laws due to cross-jurisdiction data transfer';
console.log(str);
var headerTopicName1 = str.split(/-(.+)/);
console.log(headerTopicName1);
var index = str.indexOf('-');
var arr = [str.slice(0, index), str.slice(index + 1)];
console.log(arr);