---
title: Helper Functions
---
# Helper Functions

You can write helper functions to be used in your templates by either declaring them inside the template using `{{#code}}` blocks (as [described here](codeBlocks)), or by attaching functions to the `moe.helpers` object:

```javascript
const moe = require('@toptensoftware/moe-js');
moe.helpers.FormatPrice = function (val)
{
    if (val == 0)
        return "-";
    else
        return "$" + val.toFixed(2);
}
```

You can then reference these helper function in your template as follows:

```html
<p>Price: {{helpers.FormatPrice(item.price)}}</p>
```

Note that you should NOT replace the existing `.helpers` instance - it contains internal helper
functions used by the generated template function.