From 3088f44e9eca4e9d61b96092321aa70f1411454d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micka=C3=ABl=20V=C3=A9ril?= <mveril@irsamc.ups-tlse.fr>
Date: Tue, 29 Sep 2020 11:29:40 +0200
Subject: [PATCH] Add count Array extension

---
 static/js/ArrayExtensions.js | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/static/js/ArrayExtensions.js b/static/js/ArrayExtensions.js
index e926bc35..bd40f8cb 100644
--- a/static/js/ArrayExtensions.js
+++ b/static/js/ArrayExtensions.js
@@ -15,4 +15,23 @@ if (!Array.prototype.findAsync) {
     }, [])
     }
   }
+  if (!Array.prototype.count) {
+    Array.prototype.count = function (o) {
+      var callback
+      var item
+      if (typeof o==="function") {
+        callback=o
+      }
+      else {
+        callback=(e)=>item==e
+      }
+      return this.reduce(function(c, e, i) {
+        if (callback) {
+          if (callback(e))
+            c++
+          return c
+        }
+    },0)
+    }
+  }
 }
\ No newline at end of file