Function getPriceScale

Derives the number of decimal places to show for a price based on its magnitude — a display heuristic for reports, NOT exchange tick-size precision.

The scale steps in even increments (2, 4, 6, 8): cheaper coins (most of Binance's catalogue) get more decimals, one step of two per decimal order:

  • 1 and up -> 2 (e.g. 10.00, 100.00, BTC 50000.00)
  • 0.1 .. 0.99 -> 4 (e.g. 0.5000)
  • 0.01 .. 0.099-> 6 (e.g. 0.050000)
  • below 0.01 -> 8 (e.g. 0.00001234)

For real order placement use the symbol's PRICE_FILTER.tickSize from exchangeInfo instead — magnitude is only an approximation of it.

  • getPriceScale(value: number): number

    Parameters

    • value: number

      The price to derive the decimal scale for

    Returns number

    The number of digits after the decimal point (always even, 2..8)

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