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# Example: Y.Number.parse()

The Number module of the DataType Utility allows you to take a data value and convert it to a number.

Value to parse:
The parsed number is:

To convert a data value to a number, simply call the `parse()` function of the Y.Number class:

    YUI().use("datatype-number", function(Y) {
        var output = Y.Number.parse("123123.123");
        // output is the number 123123.123
    });

Under the hood, the data value is converted to a number via `+data`, not `parseInt()`. When the resulting value is `NaN`, then null is returned:

    YUI().use("datatype-number", function(Y) {
        var output = Y.Number.parse("$100");
        // output is null

        output = Y.Number.parse("20 dollars");
        // output is null

        output = Y.Number.parse("3,000,000.12");
        // output is null (it's the commas)

        output = Y.Number.parse(new Date("Jan 1, 2000"));
        // output is 946713600000

    });