Fix ESLint errors

app/assets/javascripts/filtered_search/filtered_search_manager.js.es6

+/* eslint-disable no-param-reassign */
 ((global) => {
-  const TOKEN_TYPE_STRING = 'string';
-  const TOKEN_TYPE_ARRAY = 'array';
-
   const validTokenKeys = [{
     key: 'author',
     type: 'string',
     param: 'username',
-  },{
+  }, {
     key: 'assignee',
     type: 'string',
     param: 'username',
-  },{
+  }, {
     key: 'milestone',
     type: 'string',
     param: 'title',
-  },{
+  }, {
     key: 'label',
     type: 'array',
     param: 'name[]',
-  },];
+  }];
 
-  class FilteredSearchManager {
-    constructor() {
-      this.bindEvents();
-      this.loadSearchParamsFromURL();
-      this.clearTokens();
-    }
-
-    bindEvents() {
-      const input = document.querySelector('.filtered-search');
+  function toggleClearSearchButton(event) {
     const clearSearch = document.querySelector('.clear-search');
 
-      input.addEventListener('input', this.tokenize.bind(this));
-      input.addEventListener('input', this.toggleClearSearchButton);
-      input.addEventListener('keydown', this.checkForEnter.bind(this));
-
-      clearSearch.addEventListener('click', this.clearSearch.bind(this));
-    }
-
-    clearSearch(event) {
-      event.stopPropagation();
-      event.preventDefault();
-
-      this.clearTokens();
-      document.querySelector('.filtered-search').value = '';
-      document.querySelector('.clear-search').classList.add('hidden');
+    if (event.target.value) {
+      clearSearch.classList.remove('hidden');
+    } else {
+      clearSearch.classList.add('hidden');
     }
-
-    clearTokens() {
-      this.tokens = [];
-      this.searchToken = '';
   }
 
-    loadSearchParamsFromURL() {
+  function loadSearchParamsFromURL() {
     // We can trust that each param has one & since values containing & will be encoded
     // Remove the first character of search as it is always ?
     const params = window.location.search.slice(1).split('&');
@@ -66,10 +42,7 @@
       // Sanitize value since URL converts spaces into +
       // Replace before decode so that we know what was originally + versus the encoded +
       const sanitizedValue = value ? decodeURIComponent(value.replace(/[+]/g, ' ')) : value;
-
-        const match = validTokenKeys.find((t) => {
-          return key === `${t.key}_${t.param}`;
-        });
+      const match = validTokenKeys.find(t => key === `${t.key}_${t.param}`);
 
       if (match) {
         const sanitizedKey = key.slice(0, key.indexOf('_'));
@@ -85,7 +58,6 @@
 
         inputValue += valueHasSpace ? `${sanitizedKey}:${quotationsToUse}${sanitizedValue}${quotationsToUse}` : `${sanitizedKey}:${sanitizedValue}`;
         inputValue += ' ';
-
       } else if (!match && key === 'search') {
         inputValue += sanitizedValue;
         inputValue += ' ';
@@ -100,14 +72,36 @@
     }
   }
 
-    toggleClearSearchButton(event) {
+  class FilteredSearchManager {
+    constructor() {
+      this.bindEvents();
+      loadSearchParamsFromURL();
+      this.clearTokens();
+    }
+
+    bindEvents() {
+      const input = document.querySelector('.filtered-search');
       const clearSearch = document.querySelector('.clear-search');
 
-      if (event.target.value) {
-        clearSearch.classList.remove('hidden');
-      } else {
-        clearSearch.classList.add('hidden');
+      input.addEventListener('input', this.tokenize.bind(this));
+      input.addEventListener('input', toggleClearSearchButton);
+      input.addEventListener('keydown', this.checkForEnter.bind(this));
+
+      clearSearch.addEventListener('click', this.clearSearch.bind(this));
+    }
+
+    clearSearch(event) {
+      event.stopPropagation();
+      event.preventDefault();
+
+      this.clearTokens();
+      document.querySelector('.filtered-search').value = '';
+      document.querySelector('.clear-search').classList.add('hidden');
     }
+
+    clearTokens() {
+      this.tokens = [];
+      this.searchToken = '';
     }
 
     tokenize(event) {
@@ -121,8 +115,9 @@
       let incompleteToken = false;
 
       const addSearchTerm = function addSearchTerm(term) {
-        searchTerms += term + ' ';
-      }
+        // Add space for next term
+        searchTerms += `${term} `;
+      };
 
       inputs.forEach((i) => {
         if (incompleteToken) {
@@ -147,10 +142,7 @@
         if (colonIndex !== -1) {
           const tokenKey = i.slice(0, colonIndex).toLowerCase();
           const tokenValue = i.slice(colonIndex + 1);
-
-          const match = validTokenKeys.find((v) => {
-            return v.key === tokenKey;
-          });
+          const match = validTokenKeys.find(v => v.key === tokenKey);
 
           if (tokenValue.indexOf('"') !== -1) {
             lastQuotation = '"';
@@ -178,11 +170,9 @@
     }
 
     printTokens() {
-      console.log('tokens:')
-      this.tokens.forEach((token) => {
-        console.log(token);
-      })
-      console.log('search: ' + this.searchToken);
+      console.log('tokens:');
+      this.tokens.forEach(token => console.log(token));
+      console.log(`search: ${this.searchToken}`);
     }
 
     checkForEnter(event) {
@@ -210,18 +200,14 @@
         currentState = separatorIndex === -1 ? remaining : remaining.slice(0, separatorIndex);
       }
 
-      path += `&state=${currentState}`
-
+      path += `&state=${currentState}`;
       this.tokens.forEach((token) => {
-        const param = validTokenKeys.find((t) => {
-          return t.key === token.key;
-        }).param;
-
+        const param = validTokenKeys.find(t => t.key === token.key).param;
         path += `&${token.key}_${param}=${encodeURIComponent(token.value)}`;
       });
 
       if (this.searchToken) {
-        path += '&search=' + encodeURIComponent(this.searchToken);
+        path += `&search=${encodeURIComponent(this.searchToken)}`;
       }
 
       window.location = path;