Handle NaN and Infinity, set them to Null, like JSON does

    function append(data) {
      data == null || data === NaN || data === Infinity ? appendByte(0xc0) :
      (
        data.constructor === String ? appendString :
        data.constructor === Number ? appendNumber :
        data.constructor === Boolean ? appendBoolean :
        Array.isArray(data) ? appendArray :
        data instanceof Date ? appendDate :
        appendObject
      )(data)
    }

[ygoe]

Can you please specify what exactly needs to be converted to what in what function? I just tried to put NaN through the test code and got null back which seems to be what you’re asking for.

[SaulDoesCode]

Hmm, that’s interesting I’ll just remove the checks then and let DataView figure it out as you say. Thanks.