Regular expressions examples

regular-expressions.txt

// Select characters between two string
'100001000010001000'.match(/(?<=1)(0+)(?=1)/g)

// Convert a string to spinal case
function spinalCase(str) {
  return str.replace(/(_?\s?([A-Z]))|[_\s]/g, (match, p1, p2, offset) => {
    return (offset > 0 ? '-' : '') + (p2 ? p2.toLowerCase() : '');
  });
}

console.log(spinalCase('This Is Spinal Tap'));
console.log(spinalCase('thisIsSpinalTap'));
console.log(spinalCase('The_Andy_Griffith_Show'));
console.log(spinalCase('Teletubbies say Eh-oh'));

<style>([^<]*)<\/style>