Get Programming with JavaScript - Listings 13.13 and 13.14

Listings 13.13 and 13.14 - Importing Kallie's namespace

HTML:

<!-- number generator -->
<script src="http://output.jsbin.com/qezoce.js"></script>

<!-- spacer -->
<script src="http://output.jsbin.com/juneqo.js"></script>

<!-- Kallie’s code -->
<script src="http://output.jsbin.com/moheka.js"></script>

JS:

var getGuesser = function (lowest, highest) {
    var secret = between(lowest, highest);

    return function (userNumber) {
        var msg;
        if (userNumber === secret) {
            msg = kalliesCode.dasher("Well done!");
            return spacer.wrap(msg, msg.length + 4, "=");
        } else if (userNumber > secret) {
            msg = kalliesCode.dasher("Too high!");
            return spacer.wrap(msg, msg.length + 4, "+");
        } else {
            msg = kalliesCode.dasher("Too low!");
            return spacer.wrap(msg, msg.length + 4, "-");
        }
    };
};

var guess = getGuesser(5, 10);

Further Adventures

Listings 13.13 and 13.14 - Importing Kallie's namespace - Task 2

Change the program to use spreader rather than dasher, using the same character throughout each message.

var getGuesser = function (lowest, highest) {
    var secret = between(lowest, highest);

    return function (userNumber) {
        var msg;
        if (userNumber === secret) {
            msg = kalliesCode.spreader("Well done!", "=");
            return spacer.wrap(msg, msg.length + 4, "=");
        } else if (userNumber > secret) {
            msg = kalliesCode.spreader("Too high!", "+");
            return spacer.wrap(msg, msg.length + 4, "+");
        } else {
            msg = kalliesCode.spreader("Too low!", "-");
            return spacer.wrap(msg, msg.length + 4, "-");
        }
    };
};

var guess = getGuesser(5, 10);

Listings 13.13 and 13.14 - Importing Kallie's namespace - Tasks 3 & 4

Create your own private wrap function, within the scope of getGuesser. It should use spreader and wrap to create a formatted message.
Update the function returned from getGuesser to use your wrap function.

var getGuesser = function (lowest, highest) {
    var secret = between(lowest, highest);

    var wrap = function (text, character) {
        var msg = kalliesCode.spreader(text, character);
        return spacer.wrap(msg, msg.length + 4, character);
    };

    return function (userNumber) {
        if (userNumber === secret) {
            return wrap("Well done!", "=");
        } else if (userNumber > secret) {
            return wrap("Too high!", "+");
        } else {
            return wrap("Too low!", "-");
        }
    };
};

var guess = getGuesser(5, 10);