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大神 @XadillaX 浏览器上不能运行怎么破?

@XadillaX 大神,大神!!!

@XadillaX 怎么才能达到您的境界?

var str = "12123343889948040009"; var reg = /\d(?=(\d{5}))/g; console.log(str.replace(reg,"$1,")); @XadillaX 这个正则能否达到效果?怎么改?

``` function solution(s) { var r = /(?=(\d{4}))/g, rt = s.replace(r, "$1,").split(","); return Math.max.apply(null, rt); } ```

``` javascript function getCountedNucleotides (str){ var reg = /(\w)?\1*/g, match = str.match(reg), ret = {}, i=match.length; for(;i--;){ var mi = match[i], fc = mi[0]; ret[fc] = (!!ret[fc])?(+ret[fc])+mi.length:mi.length } return ret;...

@XadillaX 大神,有人问我回文判断的算法,而且要时间复杂度最小,怎么实现? var s1= "reaer"; var s2="reaaer";