fixing multiple occurences of the same disease in suggestions due to case sensitivity

src/js/index.js

@@ -316,7 +316,7 @@ function initMainPageStructure(container){
         {
             name: 'diseases',
             source: typeaheadSource
-            , limit: 10
+            , limit: 30
         });
 
     pluginContainer.find('.typeahead').bind('typeahead:select', (ev, suggestion) => typeaheadSelect(ev, suggestion));

src/js/ols.js

@@ -7,17 +7,30 @@ const getDisease = function(iri){
     });
 };
 
+
 const suggestDiseases = function (text) {
 
+    const caseInsensitive = function(value, index, self){
+
+        const iVal = value.autosuggest.toLowerCase();
+        for (let i = 0; i < self.length; i++){
+            if (self[i].autosuggest.toLowerCase() === iVal) {
+                return i === index;
+            }
+        }
+    };
+
     let suggestedDisDesc = []; //array of suggestion-disease description pair
 
     return $.ajax({
         url: `https://www.ebi.ac.uk/ols/api/suggest?q=${encodeURIComponent(text)}&ontology=efo&rows=20`
     }).then(function (res) {
-        const suggestions = res.response.docs.map(d => {
-            suggestedDisDesc.push({suggestion: d.autosuggest, desc: undefined});
-            return d.autosuggest;
-        });
+        const suggestions = res.response.docs
+            .filter(caseInsensitive)
+            .map(d => {
+                suggestedDisDesc.push({suggestion: d.autosuggest, desc: undefined});
+                return d.autosuggest;
+            });
         const promises =  suggestions.map(s => $.ajax({url: `https://www.ebi.ac.uk/ols/api/search?q=${encodeURIComponent(s)}&ontology=efo&queryFields=label,synonym&exact=true`}))
         return Promise.all(promises);
     }).then(function (ress) {