Function createMemoryHistory

Returns HistoryController

History controller backed by an in-memory stack.

Behavior notes:

• go(delta) clamps to valid bounds [0, length - 1].
• push after back drops forward entries.
• listeners are called only when active location changes.

Example:

const history = createMemoryHistory("/home?tab=all");
history.push("/details/42");
history.back();
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