isfloat#

Whether a value is a number with a fraction or an exponent.

Synopsis#

use Scalar::Util::Numeric qw(isfloat);
isfloat("1.0");   # 1
isfloat("1e3");   # 1
isfloat(10);      # 0

1 when the number is written with a decimal point or an exponent, or is infinity or NaN, else 0.