Merge pull request #311 from matchID-project/fix/compatibility-firefo…

…x-link-check

🚸 Replace flat function to maintain support for firefox 52

src/components/views/LinkCheck.svelte

@@ -160,11 +160,34 @@
                 });
                 return r
                 })
-                .flat()
+                .map(row => flatten(row, 1))
                 .filter(row => !filter || row[header.indexOf('score')])
                 .map(row => header.map((col, i) => protectField(row[i])).join($linkCsvType.sep) + '\r\n')];
     }
 
+    const flatten = (array, depth) => {
+      // If no depth is specified, default to 1
+      if (depth === undefined) {
+        depth = 1;
+      }
+
+      // Recursively reduce sub-arrays to the specified depth
+      const flat = (arr, depth) => {
+
+        // If depth is 0, return the array as-is
+        if (depth < 1) {
+          return arr.slice();
+        }
+
+        // Otherwise, concatenate into the parent array
+        return arr.reduce(function (acc, val) {
+          return acc.concat(Array.isArray(val) ? flat(val, depth - 1) : val);
+        }, []);
+
+      };
+      return flat(array, depth);
+    };
+
 </script>
 
 <style>
@@ -177,4 +200,4 @@
     height: 14rem;
     additive-symbols: 14rem;
   }
-</style>
+</style>