Is there a Backbone-way to format numbers in the view?

Question

Is there a special backbone-Way to format numbers? I want to display them with two decimal points, like "2" into "2.00".

Should this be done in the tepmlate?

This is one example from the template:

<td><input value="<%- price %>"></td>

In Angular.js you can use expressions and filters to achieve this, how is this in backbone?

Answer 1

Use the built in toFixed method.

<td><input value="<%- price.toFixed(2) %>"></td>

Answer 2

Backbone is an MVC library, so it's emphasis is on the MVC components of the application. Formatting is really something you'd want to look at another library for.

One option would be the Underscore.String library. If you're using Backbone, you're also using Underscore, because Backbone requires it. Underscore.String is an sub-library for Underscore which adds a number of formatting functions, including a number formatting one that you can use like so:

_.numberFormat(1000, 2) // == "1,000.00"