javascript - Accessing events defined on constructor - is this approach good? -


i have class manages tabs:

function tabsmanager() {}

when performing operations adding or removing tabs broadcasts events, example, active-tab-change. want make explicit possible events supported class, define them this:

tabsmanager.events = {     active_tab_change: "active-tab-change" }

when subscribing tabs manager events, can specify event name this:

tabsmanager.on("active-tab-change", function(){});

however, approach error prone since can misspell event name. use enumeration-like object events:

 tabsmanager.on(tabsmanager.events.active_tab_change, function(){});

the problem here if use dependency injection don't have direct reference object constructor, i've used approach:

 tabsmanager.on(tabsmanager.constructor.events.active_tab_change, function(){});

i've never seen approach used before, i'm curios whether it's feasible approach , whether it's been used in js frameworks/libraries?


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