This inspection reports usages of JavaScript equality operators which may cause unexpected type coercions. It is considered a good practice to use the type-safe equality operators === and !== instead of their regular counterparts == and !=. Depending on the option selected, this will either highlight: All usages of == and != operators. All usages except comparison with null. Some code styles allow using x == null as a replacement for x === null || x === undefined. Only suspicious expressions, such as: == or != comparisons to 0, '', null, true, false, or undefined.