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Render candlestick charts within your terminal

This is still work in progress. There’s quite some issues with some missing candles due to lack of checks for some small granular candles. Performance can also significantly be improved.

  • Adjusts based on terminal width and height automatically
  • Customizable symbols
  • Ability to change candle color (e.g., when a pattern is to be displayed in the terminal)

Example usage

const data:  Array<TOHLC> = [...] // your data here
const chart = new Chart(data);

// (COMMENTED) example of how to apply an effect to a candle.
// chart.getActiveCandles()[3].addEffect(Color.bgBlue);

// rendering of the terminal
console.log(chart+"");

// executes callback when terminal size changes
chart.onConsoleSizeChange((e)=>{
    // clear the terminal
    Deno.stdout.write(new TextEncoder().encode(`\x1B[2J`));
    // re-print the chart
    console.log(""+chart);
});