wro4j-extensions/src/main/java/ro/isdc/wro/extensions/processor/support/template/AbstractJsTemplateCompiler.java
public String compile(final String content, final String optionalArgument) {
    final RhinoScriptBuilder builder = initScriptBuilder();
    final String argStr = createArgStr(optionalArgument) + createArgStr(getArguments());
    final String compileScript =
      String.format("%s(%s%s);", getCompileCommand(), WroUtil.toJSMultiLineString(content), argStr);
    return (String) builder.evaluate(compileScript, getCompileCommand());
  }
public String compile(final String content, final String optionalArgument) {
    final RhinoScriptBuilder builder = initScriptBuilder();
    final String argStr = createArgStr(optionalArgument) + createArgStr(getArguments());
    final String compileScript =
      String.format("%s(%s%s);", getCompileCommand(), WroUtil.toJSMultiLineString(content), argStr);
    return (String) builder.evaluate(compileScript, getCompileCommand());
  }
Compiles the javascript template into plain javascript.

@param content
the template to be compiled.
@param optionalArgument
any additional arguments used by template script.
@return the compiled javascript.