Mutators

Mutates boolean literals values. Boolean literals are mutated to their negative.

The conditionals boundary mutator replaces the relational operators <, <=, >, >= with their boundary counterpart.

Mutates increments (i++) / decrements (i--) statements to their counterparts.

Mutates -a to a.

Mutates math and bitwise operators to their inverse. The modulus operator % and the exponential operator ** are mutated to multiplication *.

Mutates conditionals to their inverse.

Mutates numeric literals values. Numeric literals are mutated to value + 1, value - 1, random value, and 0 if not previously 0.

Mutates array by removing single elements.

Mutates equality conditionals (==, ===, !=, !==) to both true and false literals

Mutates function calls removing single arguments.

Mutates function declarations removing single parameters

Mutates functions by commenting them

Mutator that comments single line statements

Mutates objects by removing single properties

Mutates switch statement by removing single cases

Mutates string literals values. Strings are mutated to a random string, and to an empty string (if not previously empty).