Comment puis-je inclure jQuery dans mon fichier JS sans HTML

J'ai fait une extension chromée où mon bouton contextuel appelle un script. L'autre script utilise jQuery mais je reçois une erreur disant que JQuery n'est pas définie.

mon popup.html: p> xxx pré>

mon popup.js: p>

var arrays = []
$.get('Attendance.txt', function(data){

    var splitted = data.split("\n"); // --> should return an array for each line 

    // Loop through all lines 
    for(var i = 0; i < splitted.length; i++) 
    {

        var line = splitted[i]; 

        // Now you could remove [ and ] from string  
        var removed = line.replace('[','').replace(']','');
        var refined = removed.replace(' ', '');

        // Now you can split all values by using , delimiter
        var values = refined.split(',');  
        var array = [];
        // Now you can iterate through all values and add them to your array
        for(var c = 0; c < values.length; c++) 
        {
            var value = values[c]; 
            array.push(value);
        }
        arrays.push(array);
    }
});
var present = arrays[0];
console.log(present);
var absent = arrays[1];
console.log(absent);

var user = present[0];
var pass = absent[0];
var loginField = document.getElementById('fieldAccount');
var passwordField = document.getElementById('fieldPassword');
loginField.value = user;
passwordField.value = pass;
var loginForm = document.getElementById('btn-enter-sign-in');