// Random float between
function randomFloatBetween(minValue,maxValue,precision){
    if(typeof(precision) == 'undefined'){
        precision = 2;
    }
    return parseFloat(Math.min(minValue + (Math.random() * (maxValue - minValue)),maxValue).toFixed(precision));
}

Simple function to return a decimal value between the minValue and the maxValue.

Random Number (Float) Generator

number, function

JavaScript