javascript - Run script in newly opened tab -

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i'm writing chrome extension open new tab. question how can newly opened tab? when reach new tab, want make changes in source code. this; https://developer.chrome.com/extensions/tabs#method-create creates new tab. want make changes before user click tab. (change selected value , run inside function)

how can method create?

there callback parameter chrome.tabs.create, call chrome.tabs.executescript inside , inject code created tab.

chrome.tabs.create({url: 'http://www.google.com'}, function(tab) {     chrome.tabs.executescript(tab.id, {code: 'document.body.style.backgroundcolor = 'green;'}); });

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