I've got a javascript Function which blur's text:

function blurlines(data) {
    var dataSplit = data.split(" ");
    var lastWord = dataSplit.pop();
    var toBlur = '' + dataSplit.join(" ") +  ''; 
// Blur entire sentace, show only last word
     var output = '
' + toBlur + lastWord + '
';
     return output;
}

I'm trying to get this to work with dust.js by trying something like:

{#storylines}
                       
{/storylines}

Is there anyway to easily pass the {text} value through a JS function and then render the output?

If i run it in console it seems to work:

> blurlines("This is a test line")

> "

I do something similar, create a helper function in my global context:

var dustCtx = dust.makeBase({
    blurText: function(chunk, context, bodies, params) { 
        var dataSplit = params.data.split(" ");
        var lastWord = dataSplit.pop();
        var toBlur = '' + dataSplit.join(" ") +  ''; 
        var output = '
' + toBlur + lastWord + '
';
        return chunk.write(output);
    }
});

Merge it with local context on render:

dust.render("template", dustCtx.push({storylines:...}), function(err, out) {});

And then call it like this:

{#storylines}
    {#blurText data=text/}
{/storylines}

This approach might be handy for passing additional parameters if you wanted to control the blurring for example.