lib/modules.js
function select(rule, prefix) {
 return rule.selectors && rule.selectors[0] && rule.selectors[0].indexOf(prefix) === 0;
}
function select(rule, prefix) {
 return rule.selectors && rule.selectors[0] && rule.selectors[0].indexOf(prefix) === 0;
}
function select ( rule , prefix ) { return rule . selectors && rule . selectors [ 0 ] && rule . selectors [ 0 ] . indexOf ( prefix ) === 0 ; }
Match the rule's selector on prefix

@param {Object} rule
@param {String} prefix
@return {Boolean}
Match the rule s selector on prefix