Spot the bug - #91: Slug Formatter

programming web dev
1

One regex bug in this formatter.

function slugify(title) {
  return title.trim().toLowerCase().replace('/\s+/g', '-');
}

console.log(slugify('Hello World Again'));

Reply with what is broken and how you would fix it.

2

Your regex is a string literal, not a RegExp, so . replace() is looking for the exact characters "/\s+/g" instead of matching whitespace. Fix it by using a real regex (no quotes): title. trim(). toLowerCase(). replace(/\s+/g, '-').