Rule: use-isnan

Enforces use of the isNaN() function to check for NaN references instead of a comparison to the NaN constant.

Rationale

Since NaN !== NaN, comparisons with regular operators will produce unexpected results. So, instead of if (myVar === NaN), do if (isNaN(myVar)).

Config

Not configurable.

Examples
"use-isnan": true
Schema
null