Function: div

The div() function performs floating-point division, dividing one number by another. It always returns a float value, even if both operands are integers.

If you require floor division, use the fdiv() function instead.

Syntax:

<numerator>.div(<denominator>)

Division by Zero

If the denominator is 0, the div() function will result in an error. You should handle this case using the nullish coalescing operator (??) to provide a default value or specific case logic to avoid runtime errors.

This example calculates an error rate by dividing the error_count by the metric time_span.

Example:

// Calculate the error rate by a second metric providing the time span
var.error_rate = item.error_count.div(item.time_span)

case var.error_rate > 0.1:
    return WARNING, "Error rate is high: @var.error_rate"

case var.error_rate > 0:
    return NOTICE, "Errors detected at a rate of: @var.error_rate"

// Implicitly returns OK if error_rate is 0
return OK