Operator reference

Every operator this language supports, what it compiles to, and a link to its page on docs.mapbox.com. Anchors were checked against the live page, not guessed.

Arithmetic

Syntax	Compiles to	Docs
`a + b`	`["+", a, b]`	`+`
`a - b`, `-a`	`["-", a, b]`, `["-", a]`	`-`
`a * b`	`["*", a, b]`	`*`
`a / b`	`["/", a, b]`	`/`
`a % b`	`["%", a, b]`	`%`
`a ^ b`	`["^", a, b]`	`^`

Comparisons

Syntax	Compiles to	Docs
`a == b`	`["==", a, b]`	`==`
`a != b`	`["!=", a, b]`	`!=`
`a < b`	`["<", a, b]`	`<`
`a <= b`	`["<=", a, b]`	`<=`
`a > b`	`[">", a, b]`	`>`
`a >= b`	`[">=", a, b]`	`>=`

Boolean logic

Syntax	Compiles to	Docs
`a and b`	`["all", a, b]`	`all`
`a or b`	`["any", a, b]`	`any`
`not a`	`["!", a]`	`!`

Lookup

Syntax	Compiles to	Docs
`get("prop")`	`["get", "prop"]`	`get`
`has("prop")`	`["has", "prop"]`	`has`
`has("prop", object)`	`["has", "prop", object]`	`has`

Variables

Syntax	Compiles to	Docs
`var x = value`	`["let", "x", value, body]`	`let`
`x`	`["var", "x"]`	`var`

Control flow

Syntax	Compiles to	Docs
`if ... then ... elif ... else ...`	`["case", ...]`	`case`
`match ... then ... else ...`	`["match", ...]`	`match`
`coalesce(a, b, ...)`	`["coalesce", a, b, ...]`	`coalesce`

Ramps, scales, curves

Syntax	Compiles to	Docs
`interpolate <type> input ...`	`["interpolate", ...]`	`interpolate`
`interpolateHcl <type> input ...`	`["interpolate-hcl", ...]`	`interpolate-hcl`
`interpolateLab <type> input ...`	`["interpolate-lab", ...]`	`interpolate-lab`
`step input default ...`	`["step", ...]`	`step`

<type> is linear, exponential(base), or cubicBezier(x1, y1, x2, y2).

Math functions

Syntax	Docs
`abs(x)`	`abs`
`ceil(x)`	`ceil`
`floor(x)`	`floor`
`round(x)`	`round`
`sqrt(x)`	`sqrt`
`sin(x)`, `cos(x)`, `tan(x)`	`sin`, `cos`, `tan`
`asin(x)`, `acos(x)`, `atan(x)`	`asin`, `acos`, `atan`
`ln(x)`, `log2(x)`, `log10(x)`	`ln`, `log2`, `log10`
`min(a, b, ...)`, `max(a, b, ...)`	`min`, `max`

String functions

Syntax	Docs
`concat(a, b, ...)`	`concat`
`upcase(s)`	`upcase`
`downcase(s)`	`downcase`

Color functions

Syntax	Docs
`rgb(r, g, b)`	`rgb`
`rgba(r, g, b, a)`	`rgba`

Type conversion

Syntax	Compiles to	Docs
`toNumber(x, ...)`	`["to-number", x, ...]`	`to-number`
`toString(x)`	`["to-string", x]`	`to-string`
`toBoolean(x)`	`["to-boolean", x]`	`to-boolean`
`toColor(x, ...)`	`["to-color", x, ...]`	`to-color`
`typeof(x)`	`["typeof", x]`	`typeof`

Constants

Zero-argument operators, grouped by namespace.

Syntax	Compiles to	Docs
`math.e`	`["e"]`	`e`
`math.pi`	`["pi"]`	`pi`
`math.ln2`	`["ln2"]`	`ln2`
`camera.zoom`	`["zoom"]`	`zoom`
`feature.id`	`["id"]`	`id`
`feature.geometryType`	`["geometry-type"]`	`geometry-type`
`feature.lineProgress`	`["line-progress"]`	`line-progress`
`feature.properties`	`["properties"]`	`properties`
`feature.accumulated`	`["accumulated"]`	`accumulated`
`heatmap.density`	`["heatmap-density"]`	`heatmap-density`

Not yet supported

Mostly the rest of the Lookup family beyond get/has (at, at-interpolated, config, in, index-of, length, measure-light, slice, split, worldview), and the richer Types (array, object, collator, format, image, literal, number-format). distance, feature-state, and within (a Decision operator, not Lookup) take a GeoJSON geometry / a string argument / a GeoJSON geometry respectively, and need their own syntax design rather than fitting the patterns above.

Five documented Mapbox operators are left out on purpose, not by oversight: random, hsl, hsla, pitch, and distance-from-center aren’t supported by this version. Revisit if that changes.