math.NAN

FLOAT, read-only, constant.

Available in all subroutines.

A value that is "not a number." When converted to a STRING value, this is rendered as NaN.

Try it out

math.NAN is used in the following code examples. Examples apply VCL to real-world use cases and can be deployed as they are, or adapted for your own service. See the full list of code examples for more inspiration.

Click RUN on a sample below to provision a Fastly service, execute the code on Fastly, and see how the function behaves.

Comprehensive logging

Fastly offers a myriad of different variables that you can log. See and test a large collection here.