How do I get rid of double quotes _ regular expressions using JavaScript regular expressions

Recently received a project, project requirements need to use JS Regular expression filter out page text field is worth double quotes, in fact, the solution is very simple, the following I write the code to share with you, have the same needs of friends can refer to.

The specific resolution code is as follows:

The above code passes the IE8 browser's test. I hope it will be helpful to friends who encounter similar problems in the future.