you have already done it: var data2 = ; just remove the brackets [ ]

also assign key to your array e.g. array('key'=>'value')

$array = array(label=>value, name=>value);

var data2 = <?php echo json_encode($dataset2 );?>;

var app = @json($array);

Works like a charm

I'm going to assume that the two arrays you've given for PHP and JS are not related, and they're just examples of how arrays look in the two languages. Clearly you're not going to be able to convert those sequences of letters and numbers into those city names.

PHP provides a function to convert PHP arrays into Javascript code: json_encode(). (technically, it's JSON format; JSON stands for JavaScript Object Notation)

Use it like this:

<script type='text/javascript'>
<?php
$php_array = array('abc','def','ghi');
$js_array = json_encode($php_array);
echo "var javascript_array = ". $js_array . ";\n";
?>
</script>

See also the manual page I linked above for more information.

Note that json_encode() is only available in PHP 5.2 and up, so if you're using an older version, you'll need to use an existing one -- the PHP manual page also includes comments with functions written by people who needed it. (but that said, if you're using anything older than PHP 5.2 you should upgrade ASAP)

Try this:

const arr = [{"factoryid":233658},{"factoryid":566981},{"factoryid":889566},{"factoryid":114789},{"factoryid":256958},/* more element */];

let newArr = arr.map(elem=>elem.factoryid);

console.log(newArr);
    

But your mean is code in php or js ?

Since you're encoding it in the server side, you need to decode it in the client side like:

$chequesArray = Users::all()->toJson();

var dataSet = JSON.parse({!!json_encode($chequesArray)!!});

Or also Using "base64_encode" to conserve the json format like:

$chequesArray = base64_encode(Users::all()->toJson());

var dataSet = JSON.parse(atob('{{$chequesArray}}');

The main difference comes from the use of {{ }} vs {!! !!}, the first one escapes the special chars so it will turn the quotes "" to " then the JS will be unable to parse the string (that why we can use `base64_encode``to conserve the format), the second one will conserve the format and allow the quotes what gives the JS part the ability to parse it simply.

When you use {{ }} the data/text echo'd is escaped.

By default, Blade {{ }} statements are automatically sent through PHP's htmlentities function to prevent XSS attacks.

You just need to change these brackets to {!! !!} to avoid escaping the information:

<script>
$(document).ready(function(){
    console.log({!! $center !!});
});
</script>

You can read more about this in the docs.