Upgrade dependencies and support node >= 10

.eslintrc.js

@@ -4,4 +4,7 @@ module.exports = {
   env: {
     browser: true,
   },
+  rules: {
+    'max-classes-per-file': 0,
+  },
 };

.nycrc

@@ -1,4 +1,3 @@
 {
-  "sourceMap": false,
-  "instrument": false
+  "extends": "@istanbuljs/nyc-config-babel"
 }

.travis.yml

@@ -1,8 +1,8 @@
 language: node_js
 node_js:
 - '10'
-- '8'
-- '6'
+- '12'
+- '14'
 deploy:
   api_key:
     secure: kp9zugsY0x5MMmnVP/+fmqQaElXRDM8+Lu7Klf3r5dBBn4mE2a7p+A8mQAsKq1Qj6ujFEx4WDc2dF2ldl6PefVSAQuh9mi4BkFmBJFfqVk4ReIVOx/Ik9nX+8J/9hUgpXY9Fnt6uZgDb+pOVqIQjXR2uA7Qhk2JUohR3xn406XVsFv5fXplD9hou27O6E9UhmWepvPxZYbV/mtkI2U0AS3NjtO+/B0OEFkmb1fz2XVOjW6FFDE46GQsVc+RMunzygAKXtbjHQURXifM3JJ+M/z4iMDRbVOz33QNLIf+eXBeHt7+OmjR/QNgx7b7DMPNEafmLHA/oigMkTAy24Q+VCyLb1D/amJUYjwGupCUJnDGidS2NG5y4axTRFcvWWvDAvBUxbofXETjBdoPwcISH1j3mb36qFPfqwrQFREX9KkEWZMmT00mkkvcXjf4liAp+ELxGBSgJlLbnSBLeni37uizYx3gNz8GBEh80baNQz3bImIIyEMGaobT+TNc1zL54BD2caOkchRHCacMZPCSwg5a+IfAPj1ewm5gZ44YhDdn4CYSle6YNcy1DcK5A25MIMUV33pfzEEg10Ozb70f9j8EvkjCKbkgbkurYAhDSKbOyOc315BGPGlMzgBOzk0nPESnBugAlgSgnQC+x20pkbiIh9/xBGWLmgg3NoKyqHZY=
@@ -11,6 +11,6 @@ deploy:
   skip_cleanup: true # prevent having to rebuild all files
   on:
     tags: true
-script: npm run lint && npm run test && npm run build
+script: npm run build && npm run lint && npm run test
 after_success:
 - npm run coveralls

package.json

@@ -7,11 +7,11 @@
   "typings": "./index.d.ts",
   "scripts": {
     "test": "mocha",
-    "lint": "eslint src/",
+    "lint": "eslint 'src/**/*.js' 'test/**/*.js'",
     "build": "rollup -c",
     "cover": "nyc npm test",
     "coveralls": "npm run cover && nyc report --reporter=text-lcov | coveralls",
-    "prepare": "npm run lint && npm run build"
+    "prepare": "npm run build && npm run lint"
   },
   "files": [
     "dist",
@@ -33,27 +33,28 @@
   "homepage": "https://github.com/dotcore64/i18next-fetch-backend#readme",
   "dependencies": {},
   "devDependencies": {
-    "@babel/cli": "^7.2.3",
-    "@babel/core": "^7.3.3",
-    "@babel/plugin-proposal-class-properties": "^7.3.3",
-    "@babel/preset-env": "^7.3.1",
-    "@babel/register": "^7.0.0",
-    "babel-eslint": "^10.0.3",
-    "babel-plugin-istanbul": "^5.1.1",
+    "@babel/cli": "^7.8.4",
+    "@babel/core": "^7.9.0",
+    "@babel/plugin-proposal-class-properties": "^7.8.3",
+    "@babel/preset-env": "^7.9.5",
+    "@babel/register": "^7.9.0",
+    "@istanbuljs/nyc-config-babel": "^3.0.0",
+    "@rollup/plugin-babel": "^5.0.0",
+    "babel-eslint": "^10.1.0",
+    "babel-plugin-istanbul": "^6.0.0",
     "chai": "^4.2.0",
-    "coveralls": "^3.0.2",
+    "coveralls": "^3.1.0",
     "env-test": "^1.0.0",
-    "eslint": "^5.14.1",
-    "eslint-config-airbnb-base": "^13.1.0",
-    "eslint-plugin-import": "^2.16.0",
-    "eslint-plugin-mocha": "^6.1.0",
-    "finalhandler": "^1.1.1",
-    "i18next": "^15.0.4",
+    "eslint": "^6.8.0",
+    "eslint-config-airbnb-base": "^14.1.0",
+    "eslint-plugin-import": "^2.20.2",
+    "eslint-plugin-mocha": "^6.3.0",
+    "finalhandler": "^1.1.2",
+    "i18next": "^19.4.4",
     "isomorphic-fetch": "^2.2.1",
-    "mocha": "^6.0.0",
-    "nyc": "^13.3.0",
-    "rollup": "^1.2.2",
-    "rollup-plugin-babel": "^4.3.2",
-    "serve-static": "^1.13.2"
+    "mocha": "^7.1.2",
+    "nyc": "^15.0.1",
+    "rollup": "^2.7.3",
+    "serve-static": "^1.14.1"
   }
 }

rollup.config.js

@@ -1,4 +1,4 @@
-import babel from 'rollup-plugin-babel';
+import babel from '@rollup/plugin-babel';
 import pkg from './package.json';
 
 const input = 'src/index.js';

src/index.js

@@ -9,7 +9,7 @@ const defaults = {
   requestOptions: {},
 };
 
-const arrify = val => (Array.isArray(val) ? val : [val]);
+const arrify = (val) => (Array.isArray(val) ? val : [val]);
 const normalize = (funcOrVal, ...args) => (typeof funcOrVal === 'function' ? funcOrVal(...args) : funcOrVal);
 
 class BackendError extends Error {
@@ -117,7 +117,7 @@ class Backend {
           ...requestOptions,
         });
       } catch (ex) {
-        console.error(ex);
+        console.error(ex); // eslint-disable-line no-console
       }
     });
   }