Modules (188)

    function isInteger(value) {
        // Validate value is a number
        if (typeof (value) !== "number" || isNaN(parseInt(value, 10))) {
            return false;
        }

        // Validate number is an integer
        if (Math.floor(value) !== value) {
            return false;
        }

        // Validate number is finite
        if (!isFinite(value)) {
            return false;
        }

        return true;
    }

Public API

isIntegerInRange

Used to validate whether type of unknown value is an integer, and, if so, is it within the option lower and upper limits.

value *: Value for which to validate its type
lowerLimit optional number: Optional lower limit (inclusive)
upperLimit optional number: Optional upper limit (inclusive)

Returns: boolean: true if value is an interger, and optionally in specified range.

    function isIntegerInRange(value, lowerLimit, upperLimit) {
        // Validate value is an integer
        if (!isInteger(value)) {
            return false;
        }

        // Validate integer is in range
        var hasLowerLimt = (typeof (lowerLimit) === "number"),
            hasUpperLimt = (typeof (upperLimit) === "number");

        return ((!hasLowerLimt || value >= lowerLimit) && (!hasUpperLimt || value <= upperLimit));
    }


    // Define public API
    exports.isInteger               = isInteger;
    exports.isIntegerInRange        = isIntegerInRange;
});