I'm using chrome extension to automate my few tasks, one of them is to select the date from datepicker. but i'm unable to perform actions on Jquery UI datepicker by using its methods such as: $(".hasDatepicker").datepicker("setDate", new Date("01/03/2022")); or getting date: $(".hasDatepicker").datepicker("getDate"); i display the result in console and it returns undefine. Inside manifest file, i also included the jquery-ui.js file, here it is:

{
    "manifest_version": 3,
    "name": "Auto Cart",
    "version": "1.0",
    "content_scripts": [
        {
            "matches": [
                "https://www.billetterie-parismusees.paris.fr/*"
            ],
            "js": [
                "jquery.js",
                "jquery-ui.js",
                "content.js"
            ]  
        }
    ],
    "action": {
        "default_popup": "popup.html"
    },
    "permissions": ["storage","activeTab"]
}

Important: I can get and set values of datepicker from console but it doesn't work from content-script.js file. Can anyone pls help me in resolving this issue?