Why are alerts increasing?

Question

JavaScript

There is an extension with this background

chrome.tabs.onCreated.addListener(function(tab){
    var id = tab.id;
    chrome.tabs.onUpdated.addListener(function(id, info, t){
        
        if(t.status=="complete"){
            alert(t.status)
        }
    })
    
})

each new tab shows an alert 1 times more than the previous time, why? how to fix?

Answer 1

Because you are multiplying listeners - chrome.tabs.onUpdated.addListener inside chrome.tabs.onCreated.addListener creates another listener each time.