floor static method

num floor(
  1. num a
)

Returns the largest (closest to positive infinity) double value that is less than or equal to the argument a and is equal to a mathematical integer.

Implementation

static num floor(num a) {
  if (a is int) return a;

  if (a is double) {
    if (a.isNaN || a.isInfinite) return a;
  }

  var n = a.toInt();
  return n;
}