tupo is a command line script that adds a typo into your JavaScript.
npm install tupo -g
Usage: cli [options] <JS file>
Options:
-h, --help output usage information
-t, --type [type] Type of typo
Available types:
Syntax Errors:
keyword - mispellings of keywords
mismatch - mismatching of paranthesis, braces or brackets
binaryOperator - missing binary operators (+, -, *, /, etc)
comma - missing commas
quotes - mismatching of quotes
syntax - randomly select an above syntax error type
Runtime Errors:
identifier - mispellings of identifiers (vars and object properties)
dot - missing dot operators
string - mispellings of string literals
runtime - randomly select an above runtime error type
random - randomly select any of the above listed typo types