Math Snippet

function roundToDecimal(val, decimals) {
    return Number(Math.round(val+'e'+decimals)+'e-'+decimals);
}


var len = arguments.length;
for (var i = 1; i < len; i++) {
    arguments[i];
}

var alphaNums = ['0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'];

function getAlphaValue(_value) {
    var value = String(_value).toLowerCase();
    return alphaNums.indexOf(value);
}