Coda Formulas to JavaScript

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Coda Formulas to JavaScript

Eric Koleda

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Formulas

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Category

Coda Formula

Formula Documentation

JavaScript

Warning

Notes

Collections

Count(list...)

list.length

CountUnique(value...)

(new Set(value)).size

Find(needle, haystack)

haystack.indexOf(needle, startAt)

MaxBy(list, compareBy)

list.sort((a, b) =>

compareBy(a) > compareBy(b) ? 1 : -1)

[list.length + 1]

MinBy(list, compareBy)

list.sort((a, b) =>

compareBy(a) > compareBy(b) ? 1 : -1)

[0]

Slice(value, start)

value.slice(start, end)

End index non-inclusive.

Sort(dataset)

dataset.sort((a, b) =>

sortBy(a) > sortBy(b) ? 1 : -1)

JS sorts lexographically

Splice(value, start, deleteCount, insertValue...)

value.splice(start, deleteCount, insertValue)

To insert a list, use ...insertValue

Dates

Created(object)

Not possible

You can’t pass entire rows into a Pack, so there is no equivalent.

CurrentTimezone()

Not possible

Packs run on the server, and don’t have any information about the user looking at the doc.

Date(year, month, day)

new Date(year + "-" + month + "-" + day)

DateTime(year, month, day)

new Date(year + "-" + month + "-" + day)

DateTimeTruncate(dateOrTime, unit)

Needs library

DateToEpoch(date)

date.getTime()

Day(dateTime)

dateTime.getDate()

Time zone shifting

DocumentTimezone()

context.timezone

EndOfMonth(dateTime, monthOffset)

Needs library

EpochToDate(epochTime)

new Date(epochTime)

Hour(dateOrTime)

dateTime.getHours()

Time zone shifting

IsoWeekday(dateTime)

dateTime.getDay()

IsoWeekNumber(dateTime)

Needs library

Minute(dateOrTime)

dateTime.getMinutes()

Modified(object)

Not possible

You can’t pass entire rows into a Pack, so there is no equivalent.

Month(dateTime)

dateTime.getMonth()

Months start at 0.

MonthName(dateTime)

dateTime.toLocaleDateString("en", {

month: "long"

})

Time zone shifting

NetWorkingDays(startDate, endDate)

Needs library

Now()

new Date()

RelativeDate(dateTime, months)

dateTime = dateTime.setMonth(

dateTime.getMonth() + months)

Second(dateOrTime)

dateTime.getSeconds()

Time(hour, minute, second)

Needs library

JavaScript doesn’t have a native way to represent a pure time value.

TimeValue(time)

Needs library

JavaScript doesn’t have a native way to represent a pure time value.

ToDate(text)

Date.parse(text)

ToDateTime(datetime)

Date.parse(text)

Today()

let today = new Date();

today.setHours(0, 0, 0, 0);

ToTime(value)

Needs library

JavaScript doesn’t have a native way to represent a pure time value.

Weekday(dateTime)

dateTime.getDay()

WeekdayName(dateTime)

dateTime.toLocaleDateString("en", {

weekday: "long"

})

WeekNumber(dateTime)

Needs library

Workday(startDate, numWorkingDays)

Needs library

Year(dateTime)

dateTime.getFullYear()

Duration

Days(days)

Needs library

Duration()

Needs library

Hours(hours)

Needs library

Minutes(minutes)

Needs library

Seconds(seconds)

Needs library

ToDays(duration)

Needs library

ToHours(duration)

Needs library

ToMinutes(duration)

Needs library

ToSeconds(duration)

Needs library

Filters

AverageIf(list, expression)

let filtered = list.filter(num => expression);

let result = filtered.reduce((sum, num) => sum + num, 0) / filtered.length;

CountIf(list, expression)

list.filter(num => expression).length

Filter(list, expression)

list.filter(currentValue => expression)

IsFromTable(row, table)

Not possible

You can’t pass entire rows into a Pack, so there is no equivalent.

Lookup(table, column, match value)

Not possible

You can’t pass entire rows or tables into a Pack, so there is no equivalent.

Matches(value, control)

Too complex

The logic in the Matches() formula is complex, and there isn’t a simple equivalent in JavaScript.

SumIf(list, expression)

list.filter(num => expression)

.reduce((result, num) => result + num)

Logical

And(value...)

value1 && value2

False()

false

If(condition, ifTrue, ifFalse)

let result;

if (condition) {

result = ifTrue;

} else {

result = ifFalse;

}

IfBlank(value, ifBlank)

let result = value;

if (result == undefined) {

result = ifBlank;

}

Not(value)

!value

Or(value...)

value1 || value2 || value3

Switch(expression, value, result, arg...)

let result;

switch (expression) {

case value1:

result = result1;

break;

case value2:

result = result2;

break;

default:

result = defaultValue;

}

SwitchIf(condition, ifTrue, arg...)

let result;

if (condition1) {

result = ifTrue1;

} else if (condition2) {

result = ifTrue2;

} else {

result = defaultValue;

}

True()

true

Info

IsBlank(value)

value == undefined

IsDate(value)

value instanceof Date

IsLogical(value)

typeof value == "boolean"

IsNotBlank(value)

value != undefined

IsNotText(value)

typeof value != "string"

IsNumber(value)

typeof value == "number"

IsText(value)

typeof value == "string"

ToNumber(value)

parseFloat(value, base)

ToText(value)

value.toString()

Math

AbsoluteValue(number)

Math.abs(number)

Average(value...)

list.reduce((sum, num) => sum + num, 0) / list.length

BinomialCoefficient(n, k)

Needs library

Ceiling(value)

Math.ceil(value)

Even(value)

value % 2 == 0 ? value : value + 1

Exponent(value)

Math.exp(value)

Factorial(value)

Needs library

Floor(value)

Math.floor(value)

IsEven(value)

value % 2 == 0

IsOdd(value)

value % 2 == 1

Ln(number)

Math.log(number)

Log(number, base)

Math.log(number) / Math.log(base)

Log10(number)

Math.log10(number)

Max(value...)

Math.max(value1, value2)

Math.max(...list)

Median(value...)

Needs library

Min(value...)

Math.min(value1, value2)

Math.min(...list)

Mode(value...)

Needs library

Odd(value)

value % 2 == 1 ? value : value + 1

Percentile(dataset, percentile)

Needs library

PercentileRank(dataset, value)

Needs library

Pi()

Math.PI

Power(number, exponent)

Math.pow(number, exponent)

Product(value...)

value1 * value2

Quotient(dividend, divisor)

dividend / divisor

Random()

Math.random()

RandomInteger(low, high)

Math.floor(Math.random() * (high - low + 1) + low)

Rank(value, dataset)

Needs library

Remainder(dividend, divisor)

dividend % divisor

Round(number)

Math.round(number)

RoundDown(number)

Math.floor(number)

RoundTo(value, factor)

Needs library

RoundUp(number)

Math.ceil(number)

Sign(number)

number / Math.abs(number)

SquareRoot(number)

Math.sqrt(number)

StandardDeviation(value...)

Needs library

StandardDeviationPopulation(value...)

Needs library

Sum(value...)

value1 + value2

SumProduct(list1, list2)

let result = 0;

for (let i = 0; i < list1.length; i++) {

result += list1[i] * list2[i];

}

Truncate(number)

Needs library

Misc

ObjectLink(object)

Not possible

You can’t pass entire rows into a Pack, so there is no equivalent.

PageName(object)

Not possible

ParseCSV(csvString)

Needs library

Object

ParseJSON(jsonString)

JSON.parse(jsonString).path.path

Instead of using a path string, “dot” into the parsed object.

People

CreatedBy(object)

Not possible

You can’t pass entire rows into a Pack, so there is no equivalent.

IsSignedIn()

Not possible

Packs run on the server, and don’t have any information about the user looking at the doc.

ModifiedBy(object)

Not possible

You can’t pass entire rows into a Pack, so there is no equivalent.

User()

Not possible

Packs run on the server, and don’t have any information about the user looking at the doc.

Relational

Let(value, name, expression)

let name = value;

// Do expression

RowId(row)

Not possible

Packs run on the server, and don’t have any information about the user looking at the doc.

WithName(value, name, expression)

let name = value;

// Do expression

RichText

BulletedList(value...)

Not possible

JavaScript doesn’t have a concept of rich text. You can however return

Markdown⁠

HTML⁠

IndentBy(text, levels)

Not possible

JavaScript doesn’t have a concept of rich text. You can however return

Markdown⁠

HTML⁠

NumberedList(value...)

Not possible

JavaScript doesn’t have a concept of rich text. You can however return

Markdown⁠

HTML⁠

Shape

ClipCircle(image)

Not possible

Embed(url)

Not possible

Not possible using pure JavaScript, but can be done in the

Pack SDK⁠

Hyperlink(url)

Not possible

Not possible using pure JavaScript, but can be done in the Pack SDK.

HyperlinkCard(url)

Not possible

Not possible using pure JavaScript, but can be done in the Pack SDK.

Image(url)

Not possible

Not possible using pure JavaScript, but can be done in the

Pack SDK⁠

Rectangle(width)

Not possible

Spatial

Distance(location1, location2)

Needs library

Location(latitude, longitude)

Needs library

String

Character(charNumber)

String.fromCharCode(charNumber)

Concatenate(text...)

[text1, text2, text3].join("")

ContainsText(text, searchText)

text.includes(searchText)

To ignore case, apply .toLowerCase() to both strings first.

DecodeFromBase64(base64Text)

Buffer.from(base64Text, "base64").toString()

EncodeAsBase64(text)

Buffer.from(text).toString("base64")

EncodeForUrl(text)

encodeURIComponent(text)

EndsWith(text, suffix)

text.endsWith(suffix)

Format(template, text...)

`Hi ${text1}, my ${text2} is ${text3}`

This is an example of a

template literal string⁠

in JavaScript.

Join(delimiter, text...)

text.join(delimeter)

Left(text, numberOfCharacters)

text.substring(0, numberOfCharacters)

LeftPad(text, targetLength)

text.padStart(targetLength, padString)

Length(text)

text.length

LineBreak()

"\n"

Lower(text)

text.toLoewerCase()

Middle(text, start, numberOfCharacters)

text.substring(start, start + numberOfCharacters)

RegexExtract(text, regularExpression)

text.match(regularExpression)

RegexMatch(text, regularExpression)

text.match(regularExpression)

Regular expressions aren’t strings.

RegexReplace(text, regularExpression, replacementText)

text.replace(regularExpression, replacementText)

Need to use /g modifier to replace them all.

Repeat(text, repetitions)

text.repeat(repetitions)

Replace(text, start, numberOfCharacters, replacementText)

let chars = text.split("");

chars.splice(start, numberOfCharacters, replacementText);

text = chars.join("");

Remember that JavaScript indices start at zero (0).

Right(text, numberOfCharacters)

text.substring(text.length - numberOfCharacters)

RightPad(text, targetLength)

text.padEnd(targetLength, padText)

Split(text, delimiter)

text.split(delimiter)

StartsWith(text, prefix)

text.startsWith(prefix)

Substitute(text, searchFor, replacementText)

text.replace(searchFor, replacementText)

SubstituteAll(text, searchFor, replacementText)

text.replaceAll(searchFor, replacementText)

ToByteSize(byteCount)

Needs library

ToHexadecimal(decimalNumber)

decimalNumber.toString(16)

Trim(text)

text.trim()

Upper(text)

text.toUpperCase()

Lists

All(list)

list.every(expression)

Any(list)

list.some(expression)

Contains(value, search...)

search.some(item => value.includes(item))

The code assumes that search is an array of values.

ContainsAll(value, search...)

search.every(item => value.includes(item))

ContainsOnly(value, search...)

value.length == search.length && search.every(item => value.includes(item))

CountAll(list)

list.length

Duplicates(value...)

[...new Set(value.filter((item, index, arr) => arr.indexOf(item) !== index))]

First(list)

list[0]

Arrays in JavaScript start at index zero (0).

ForEach(list, formula)

list.map(item => {

// Apply the mapping to item.

return item;

})

Same as

@FormulaMap(list, formula)⁠

FormulaMap(list, formula)

list.map(item => {

// Apply the mapping to item.

return item;

})

In(search, value...)

value.includes(search)

Last(list)

list[list.length - 1]

Arrays in JavaScript start at index zero (0).

List(value...)

[value1, value2, value3]

ListCombine(value...)

value1.concat(value2, value3)

Nth(list, position)

list[position]

Arrays in JavaScript start at index zero (0).

RandomItem(list)

list[Math.floor(Math.random() * list.length)]

RandomSample(list, count)

Needs library

ReverseList(list)

list.reverse()

Sequence(start, end)

let result = [];

for (let i = start; i <= end; i += by) {

result.push(i);

}

Unique(value...)

Array.from(new Set(value))

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