Creating a simple Vue pluralize filter

There are many options how to create a pluralize function but in Vue you should probably use filters. Let's create one as it's always handy to have one.

Step 1: Add pluralize package

Let's use https://github.com/blakeembrey/pluralize to do the heavy lifting:

yarn add pluralize

Step 2: Register filter

Our pluralize filter will take two arguments - first one is the left variable in the filter and second is the filter function argument (depends on your code structure, but it's usually main.js or a dedicated filters file):

// .. your other imports
import pluralize from 'pluralize'

// .. your other code

Vue.filter('pluralize', function (value, number) {
  return pluralize(value, number)
})

Step 3: Use the filter!

Now, to use the filter on the left we give it the word we want to pluralize and as an argument we pass the count:

{{ tunnels }} {{ 'tunnel' | pluralize(tunnels) }}

That's it :) Now, based on tunnels variable it will be either '1 tunnel' or '50 tunnels'.

I hope this will be useful to you once you need it!

Comments

[Gonçalo Morais]

Nice tip! Looking at the documentation, if you add true to your return pluralize(value, number) (making it return pluralize(value, number, true)), you could remove the first {{}} and have it simply {{ 'tunnel' | pluralize(tunnels) }}.

[Chris Achard]

I can't believe I didn't think to look for a pluralizer before as an npm module... of course it exists! Thanks :)

[Yuyu]

Nice tips on making your own filte.

[Karolis]

I am usually using quite a lot of filters in my applications for various things like encoding/decoding base64, pretty printing JSON and so on. Filters are really great! :)

[aadill77]

we can use Point Free Expression in vue.filter as the functions share the same shape.

Vue.filter('pluralize', pluralize);