如何使用window.opener来使用父页面中包含的.js中的功能

Question

For exemple, in the parent page

<script src="js/test.js"></script>

and then we use window.open to open page 2, so in page 2, how do we use window.opener for calling functions in the test.js?

Answer 1

window.opener.functionOnParentPage();

Answer 2

尝试这个：

window.opener.functionName()