According to the String.prototype.replace() page on MDN, I should be able to easily replace multiple patterns just by using
str.replace(\'what to replace\',
The very page you linked to mentions:
The use of the flags parameter in the String.replace method is non-standard. For cross-browser compatibility, use a RegExp object with corresponding flags.
Basically, it should only work on Firefox. As per the documentation, you can generate regexes dynamically using new RegExp
:
var regex = new RegExp(variable, 'gi');
questionText = questionText.replace(regex, rep);
This will need variable
to be escaped, however.