random-key-generator/index.js

it's a light weight random key generator

module.exports = function(length=0) {
    var size =36,
        timestamp = (new Date().getTime()).toString(size);
    var randomKey  = getRandomNumber('',length)+timestamp;
    if(length>=1){
        randomKey =randomKey.substr(0, length)
    }
    return randomKey;
}
module.exports.getRandom =function(length=0,defaultText='',separator='',appendat='front'){
    var timestamp = (new Date().getTime()).toString(36);
    var randomKey  = getRandomNumber('',length)+timestamp;
    if(length>=1){
        randomKey =randomKey.substr(0, length)
    }
    var value =String(defaultText)+String(separator)+randomKey;
    if(appendat=='rear'){
        value =randomKey+String(separator)+String(defaultText)
    }
    return value;
}
function getRandomNumber(value,length){
    var mathBlock =1000000;
    var randomValue = (Math.random()*mathBlock<<10).toString(36);
    if(length<1){
        return value=value+randomValue;
    }
    return getRandomNumber(value+randomValue,length-randomValue.length);
}