Three ways for mini program navigateBack to return with parameters (details)

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The first way is getCurrentPages

• Get the current page stack. The first element in the array is the home page, and the last element is the current page.
• Do not try to modify the page stack, as this will cause routing and page status errors.
• Do not call getCurrentPages() during App.onLaunch, when the page has not yet been generated.

Code example

const pages = getCurrentPages(); // 当前页的数据，
const prevPage = pages[pages.length -