Function asFloat

A function that tries to retrieve an environment variable from the process.env object and, if it succeeds, validates that it can be parsed as a float value, and, if so, returns it as a number value.

Throws

An Error instance explaining that the variable was either not found or that it could not be parsed into a valid float.

See

asOptionalFloat

Note

Internally, this function uses Number.parseFloat to try to convert the string into a number. That means, for example, that a value like "123.5_test" will yield "123.5" instead of failing. In other words, if Number.parseFloat returns something other than NaN, this function won't throw.