fix: Replace Array.includes by Array.indexOf for node 4

Author: nodkz

src/composeWithMongoose.js

@@ -52,7 +52,7 @@ export function prepareFields(
   if (Array.isArray(opts.only)) {
     const onlyFieldNames: string[] = opts.only;
     const removeFields = Object.keys(typeComposer.getFields()).filter(
-      fName => !onlyFieldNames.includes(fName)
+      fName => onlyFieldNames.indexOf(fName) === -1
     );
     typeComposer.removeField(removeFields);
   }
@@ -72,7 +72,7 @@ export function prepareInputFields(
   if (Array.isArray(inputFieldsOpts.only)) {
     const onlyFieldNames: string[] = inputFieldsOpts.only;
     const removeFields = Object.keys(inputTypeComposer.getFields()).filter(
-      fName => !onlyFieldNames.includes(fName)
+      fName => onlyFieldNames.indexOf(fName) === -1
     );
     inputTypeComposer.removeField(removeFields);
   }
@@ -129,7 +129,9 @@ export function prepareConnectionResolver(
   typeComposer: TypeComposer,
   opts: ConnectionSortMapOpts
 ) {
-  const uniqueIndexes = extendByReversedIndexes(getUniqueIndexes(model), { reversedFirst: true });
+  const uniqueIndexes = extendByReversedIndexes(getUniqueIndexes(model), {
+    reversedFirst: true,
+  });
   const sortConfigs = {};
   uniqueIndexes.forEach(indexData => {
     const keys = Object.keys(indexData);

src/resolvers/helpers/filter.js

@@ -137,7 +137,7 @@ export function getIndexedFieldNames(model: MongooseModelT): string[] {
   // filter duplicates
   const uniqueNames = [];
   const result = fieldNames.filter(val => {
-    if (uniqueNames.includes(val)) return false;
+    if (uniqueNames.indexOf(val) > -1) return false;
     uniqueNames.push(val);
     return true;
   });

src/utils/getIndexesFromModel.js

@@ -69,7 +69,7 @@ export function getIndexesFromModel(
   const tmp = [];
   const result = indexedFields.filter(val => {
     const asString = JSON.stringify(val);
-    if (tmp.includes(asString)) return false;
+    if (tmp.indexOf(asString) > -1) return false;
     tmp.push(asString);
     return true;
   });