[Solved] How do I use an array I’ve created within my Test file

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Since “postcode” is an array, you can generate a random index as shown below:

var s = 55;
var random = function() {
   s = Math.sin(s) * 10000;
   return s - Math.floor(s);
};
//...
var postIndex = Math.floor(random() * postcode.length);
var currentPost = postcode[postIndex];

For example:

import { Selector } from 'testcafe';

fixture `Getting Started`
    .page `http://devexpress.github.io/testcafe/example`;

const postcode = [
    "b28 8ND", 
    "b49 6BD", 
    "b28 0ST", 
    "b31 4SU",
    "B92 9AH",
];

var s = 55
var random = function() {
    s = Math.sin(s) * 10000;
    return s - Math.floor(s);
};

test('My first test', async t => {

    var postIndex = Math.floor(random() * postcode.length);
    var currentPost = postcode[postIndex];

    console.log(currentPost)

    await t        
        .typeText('#developer-name', currentPost);
});

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solved How do I use an array I’ve created within my Test file