How to Preserve JavaScript Variables During Page Transitions?

Preserving JavaScript Variables Throughout Page Transitions

The ability to maintain the state of JavaScript variables across multiple web pages enhances the user experience and application functionality. This question delves into techniques for preserving variable values as a user navigates different pages within a website.

Utilize window.name

One established method for persisting JavaScript variables across pages is leveraging the window.name property. By assigning the desired value to window.name on the originating page, you can retrieve it on subsequent pages using the same window. This approach, commonly referred to as JavaScript session, is suitable for scenarios where you need to retain information within the same browser window or tab. However, it's important to note that this method only works in the current window or tab and is not cross-window or cross-tab compatible.

Here's an example demonstrating this technique:

// Page A
window.name = "myVariable:5";

// Page B
var retrievedValue = window.name.split(":")[1];
alert(retrievedValue); // Outputs "5"

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