An ECMAScript to English transpiler.

index.js

function transpile(token){
  switch(token.type){
    case "Literal":
      switch(typeof token.value){
        case "string":
          return `"${token.value}"`;
        case "boolean":
          return `${token.value ? "true" : "false"}`;
        case "null":
          return "nothing";
        case "number":
          return `${token.value}`;
      }
    case "RegExpLiteral":
      return `the regular expression "${token.regex.pattern}" with the flags "${token.regex.flags}"`;
    case "Program":
      return token.body.map(statement => transpile(statement)).join('');
    
  }
}