Razor MVC Populating Javascript array with Model Array

Question

I'm trying to load a JavaScript array with an array from my model. Its seems to me that this should be possible.

Neither of the below ways work.

Cannot create a JavaScript loop and increment through Model Array with JavaScript variable

for(var j=0; j<255; j++)
{
    jsArray = (@(Model.data[j])));
}

Cannot create a Razor loop, JavaScript is out of scope

@foreach(var d in Model.data)
{
    jsArray = d;
}

I can get it to work with

var jsdata = @Html.Raw(Json.Encode(Model.data)); 

But I don't know why I should have to use JSON.

Also while at the moment I'm restricting this to 255 bytes. In the future it could run into many MBs.

Answer 1

This is possible, you just need to loop through the razor collection

<script type="text/javascript">

    var myArray = [];

    @foreach (var d in Model.data)
    {
        @:myArray.push("@d");
    }

    alert(myArray);

</script>

Answer 2

I was working with a list of toasts (alert messages), List<Alert> from C# and needed it as JavaScript array for Toastr in a partial view (.cshtml file). The JavaScript code below is what worked for me:

var toasts = @Html.Raw(Newtonsoft.Json.JsonConvert.SerializeObject(alerts));
toasts.forEach(function (entry) {
    var command = entry.AlertStyle;
    var message = entry.Message;
    if (command === "danger") { command = "error"; }
    toastr[command](message);
});