Converts a string to kebab case.
string to convert
a kebab-cased string
var str = kebabcase( 'fooBar' ); // returns 'foo-bar'
var str = kebabcase( 'foo_bar' ); // returns 'foo-bar'
var str = kebabcase( 'foo-bar' ); // returns 'foo-bar'
Converts a string to kebab case.