var slug = "CodePadding Rahman ( Mizan ) 12456 <> title";
slug = slug.toLowerCase().replace(/[^\w-]+/g, '-');
console.log(slug); // codepadding-rahman-mizan-12456-titlevar slug = "CodePadding Rahman ( Mizan ) 12456 <> title";
//change all characters except numbers and letters
slug = slug.replace(/[^a-zA-Z0-9]/g, ' ');
//remove multiple space to single
slug = slug.replace(/ +/g, ' ');
// remove all white spaces single or multiple spaces
slug = slug.replace(/\s/g, '_').toLowerCase();
console.log(slug)
// output - codepadding_rahman_mizan_12456_title