Scriptable iOS Decimal to Hexadecimal Widget

// written by /u/Worish
const pretitle = "DecToHex"
const title = "Input: "
const input = String(args.widgetParameter)
const title2 = "Output: "
const color = "#53d769"

// if we're a widget
if (config.runsInWidget) {
    // create widget object
    let widget = createWidget(pretitle, title, input, title2, color)
    // show widget
    Script.setWidget(widget)
    //  end script
    Script.complete()
} else {
    output = decToHex(String(input))

    //  make table
    let table = new UITable()

    let row = new UITableRow()
    row.isHeader = true
    row.addText('Decimal to Hex Conversion')
    table.addRow(row)
            table.addRow(createRow("Input","Output"))
    table.addRow(createRow(input,output))

    if (config.runsWithSiri)
        Speech.speak("The decimal number "+input+", in hexadecimal is "+output)

    table.present()

    //  end script
    Script.complete()
}

function createRow(a,b) {
    let row = new UITableRow()
    row.addText(a)
    row.addText(b).rightAligned

    return row
}

function createWidget(pretitle, title, input, title2, color) {
    let w = new ListWidget()

    output = decToHex(String(input))

    w.backgroundColor = new Color(color)

    txtColor = Color.white()

    formatWidgetRow(0, w, pretitle, txtColor, 0.8, 16)

    formatWidgetRow(5, w, title+input, txtColor, 0.8, 20)

    formatWidgetRow(5, w, title2+output, txtColor, 0.8, 20)

    return w
}

function formatWidgetRow(prespacing, widget, text, color, opacity, size) {
    widget.addSpacer(prespacing)
    let theTxt = widget.addText(text)
    theTxt.textColor = color
    theTxt.textOpacity = opacity
    theTxt.font = Font.systemFont(size)
}

function decToHex(input) {
    inNum = Number(input)
    outString=""

    for (i=input.length;i>0;i--) {
        appendix=intDiv(inNum,i-1)
        inNum=modSixteen(inNum,i-1)
        outString=outString+appendix
        if (Number(outString) == 0) {
            outString=""
        }
    }

    return String(outString)
}

// written by /u/Worish

function intDiv(input, degree) {
    digit = Math.floor(input/(16**degree))
    output = digitChanger(digit)
    return output
}

function modSixteen(input,degree) {
    output = input % (16**degree)
    return output
}

function digitChanger(digit) {
    if (digit == 10) {return "A"}
    else if (digit == 11) {return "B"}
    else if (digit == 12) {return "C"}
    else if (digit == 13) {return "D"}
    else if (digit == 14) {return "E"}
    else if (digit == 15) {return "F"}
    else {return String(digit)}
}