in web/js/faker.js [836:861]
self.mask = function (length, parens, elipsis) {
//set defaults
length = (length == 0 || !length || typeof length == 'undefined') ? 4 : length;
parens = (parens === null) ? true : parens;
elipsis = (elipsis === null) ? true : elipsis;
//create a template for length
var template = '';
for (var i = 0; i < length; i++) {
template = template + '#';
}
//prefix with elipsis
template = (elipsis) ? ['...', template].join('') : template;
template = (parens) ? ['(', template, ')'].join('') : template;
//generate random numbers
template = Helpers.replaceSymbolWithNumber(template);
return template;
}