From ae79c1c5aea940c865bda791dff70c21f0718ab8 Mon Sep 17 00:00:00 2001
From: Chris Neale <christopher.neale@gmail.com>
Date: Thu, 7 Mar 2019 14:35:53 +0000
Subject: [PATCH] Add new filter to format long numbers according to GOV.UK
 content guidelines, inserting commas every third digit

eg. 1000000 becomes 1,000,000
---
 app/filters.js | 5 +++++
 package.json   | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/app/filters.js b/app/filters.js
index 47ab9ed0ec..06e7c9569e 100644
--- a/app/filters.js
+++ b/app/filters.js
@@ -1,3 +1,4 @@
+var dateFilter = require('nunjucks-date-filter')
 module.exports = function (env) {
   /**
    * Instantiate object used to store the methods registered as a
@@ -6,6 +7,9 @@ module.exports = function (env) {
    * @type {Object}
    */
   var filters = {}
+  filters.formatNumber = function (x) {
+    return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',')
+  }
 
   /* ------------------------------------------------------------------
     add your methods to the filters obj below this comment block:
@@ -41,5 +45,6 @@ module.exports = function (env) {
   /* ------------------------------------------------------------------
     keep the following line to return your filters to the app
   ------------------------------------------------------------------ */
+  filters.date = dateFilter
   return filters
 }
diff --git a/package.json b/package.json
index 65a8f15841..6ce855d188 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,8 @@
     "require-dir": "^1.0.0",
     "sync-request": "^6.0.0",
     "universal-analytics": "^0.4.16",
-    "uuid": "^3.2.1"
+    "uuid": "^3.2.1",
+    "nunjucks-date-filter": "^0.1.1"
   },
   "greenkeeper": {
     "ignore": [