/** * Created by Think on 2016/8/1. */ // charAt()æ¹æ³æ¥è®¿é®å个çå符以å¤ï¼è¿å¯ä»¥ä½¿ç¨æ¹æ¬å· var s = 'test'; s.charAt(0); // =ã 't' s[1]; // => 'e' // å符串çè¡ä¸ºç±»ä¼¼äºæ°ç»çäºå®ï¼ä½¿å¾éç¨çæ°ç»æ¹æ³å¯ä»¥åºç¨ä¸åç¬¦ä¸²ä¸ var s = "javascript"; var s1 = Array.prototype.join.call(s," "); // console.log("##s1:",s1); var s2 = Array.prototype.filter.call(s,function(x){ return x.match(/[^aeiou]/); // åªå¹é éå é³åæ¯ }) console.log("##s2:",s2);