scrimba
Learn JavaScript
Chrome Extension
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index.js
run
preview
console
let myLeads = []
const inputEl = document.getElementById("input-el")
const inputBtn = document.getElementById("input-btn")
const ulEl = document.getElementById("ul-el")
const deleteBtn = document.getElementById("delete-btn")
const leadsFromLocalStorage = JSON.parse( localStorage.getItem("myLeads") )
const tabBtn = document.getElementById("tab-btn")

if (leadsFromLocalStorage) {
myLeads = leadsFromLocalStorage
render(myLeads)
}

tabBtn.addEventListener("click", function(){
chrome.tabs.query({active: true, currentWindow: true}, function(tabs){
myLeads.push(tabs[0].url)
localStorage.setItem("myLeads", JSON.stringify(myLeads) )
render(myLeads)
})
})

function render(leads) {
let listItems = ""
for (let i = 0; i < leads.length; i++) {
listItems += `
<li>
<a target='_blank' href='${leads[i]}'>
${leads[i]}
</a>
</li>
`
}
ulEl.innerHTML = listItems
}

deleteBtn.addEventListener("dblclick", function() {
localStorage.clear()
myLeads = []
render(myLeads)
})

inputBtn.addEventListener("click", function() {
myLeads.push(inputEl.value)
inputEl.value = ""
localStorage.setItem("myLeads", JSON.stringify(myLeads) )
render(myLeads)
})
Console
/index.html
-5:43