Mar*_*ahn 13

脱离我的头顶:

function generatePassword(len){
    var pwd = [], cc = String.fromCharCode, R = Math.random, rnd, i;
    pwd.push(cc(48+(0|R()*10))); // push a number
    pwd.push(cc(65+(0|R()*26))); // push an upper case letter

    for(i=2; i<len; i++){
       rnd = 0|R()*62; // generate upper OR lower OR number
       pwd.push(cc(48+rnd+(rnd>9?7:0)+(rnd>35?6:0)));
    }

    // shuffle letters in password
    return pwd.sort(function(){ return R() - .5; }).join('');
}
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