Language & inputs

AlgoCode compiles to JavaScript and runs on your chart candles. JavaScript mode runs directly. Both share the same candle data and TA helpers.

Inputs (script settings)

const len = input.int(9, { title: "Length", minval: 1 });
const src = source(input.source("close", { title: "Source" }));
const mode = input.string("EMA", {
  title: "MA Type",
  options: ["SMA", "EMA", "WMA"],
});

Supported input types: int, float, bool, string, source, color, timeframe, time, session, symbol. Values appear in the editor Inputs panel.

Price data & series

  • candles — OHLCV array per bar
  • close, open, high, low, volume, time
  • source("hlc3") — close, open, hl2, hlc3, ohlc4
  • close[1] — bar history via the AlgoCode transpiler (__hist())
  • na — use NaN for gaps
  • barstate.*, syminfo.*, timeframe.* — chart context

Technical analysis library

// Moving averages
ema, sma, rma, wma, vwma, dema, tema, hma, zlema, kama, trima

// Bands & channels
bb, keltner, donchian, envelope, stdDevBands, stdev

// Oscillators
rsi, macd, stoch, stochRsi, cci, mfi, williamsR, roc, trix, tsi, cmo, mom

// Trend / volatility
atr, adx, supertrend, parabolicSar, vwap, ichimoku

// Utilities
highest, lowest, crossover, crossunder, shift(values, offset)

AlgoCode ta.* calls map to these implementations. See the language reference for the full alias list.

Plotting

return [
  plot(ema(close, 9), { title: "EMA", color: color.blue, lineWidth: 2 }),
  plotFill(upper, lower, { color: "rgba(38,166,154,0.25)", title: "Band" }),
  hline(70, { title: "Overbought" }),
  plotHistogram(hist, { title: "Hist" }),
];

Plotting built-ins

  • plot(), plotshape(), plotchar(), plotcandle()
  • fill() → plotFill(), bgcolor(), barcolor(), hline()
  • label.*, line.*, box.*, table.*

SuperTrend / Algobridge trend: in JavaScript use plotTrendST(tsl, trend) and plotTrendSignals(trend), or load a ready template from the toolbar. AlgoCode plotshape maps to buy/sell arrows on the chart.

Multi-timeframe & other symbols

request.security() is supported. On Run, Algocrab prefetches extra symbol/timeframe candle data. Fundamentals requests use a demo provider until a live data vendor is connected.

User-defined functions & types

  • AlgoCode functions f(x) => … transpile to JavaScript
  • for, while, switch, enum, type / method supported
  • array.*, map.*, matrix.* supported