Fix lint error

.eslintrc

@@ -3,11 +3,13 @@
   "env": {
     "browser": true,
     "node": true,
-    "mocha": true
+    "mocha": true,
+    "worker": true
   },
   "rules": {
     "no-underscore-dangle": 0,
     "no-console": 0,
-    "global-require": 0
+    "global-require": 0,
+    "camelcase": 0
   }
 }

package.json

@@ -25,6 +25,7 @@
   ],
   "license": "Apache-2.0",
   "devDependencies": {
+    "acorn": "^6.1.1",
     "cors": "^2.8.5",
     "eslint": "^5.9.0",
     "eslint-config-airbnb": "^17.1.0",

src/browser/index.js

@@ -39,7 +39,7 @@ const readFromBlobOrFile = (blob, res) => {
  *   string: URL string, can be relative path
  *   img HTMLElement: extract image source from src attribute
  *   video HTMLElement: extract image source from poster attribute
- *   canvas HTMLElement: extract image data by converting to Blob 
+ *   canvas HTMLElement: extract image data by converting to Blob
  *   File instance: data from <input type="file" />
  * @returns {array} binary image in array format
  */
@@ -88,7 +88,7 @@ const downloadFile = (path, blob) => {
       document.body.removeChild(link);
     }
   }
-}
+};
 
 /*
  * Default options for browser worker

src/browser/worker.js

@@ -33,7 +33,7 @@ workerUtils.setAdapter({
        */
       if (check.not.undefined(global.TesseractCoreWASM) && typeof WebAssembly === 'object') {
         global.TesseractCore = global.TesseractCoreWASM;
-      } else if (check.not.undefined(global.TesseractCoreASM)){
+      } else if (check.not.undefined(global.TesseractCoreASM)) {
         global.TesseractCore = global.TesseractCoreASM;
       } else {
         throw Error('Failed to load TesseractCore');
@@ -44,7 +44,7 @@ workerUtils.setAdapter({
   },
   b64toU8Array: s => new Uint8Array(atob(s).split('').map(c => c.charCodeAt(0))),
   writeFile: (path, data, type) => {
-    self.postMessage({
+    postMessage({
       jobId: 'Download',
       path,
       data,

src/common/workerUtils.js

@@ -8,7 +8,6 @@
  * @author Jerome Wu <jeromewus@gmail.com>
  */
 const { readImage, loadLang } = require('tesseract.js-utils');
-const check = require('check-types');
 const pdfTTF = require('./pdf-ttf');
 const dump = require('./dump');
 const { defaultParams } = require('./options');
@@ -59,7 +58,7 @@ const setImage = (image) => {
  * @name handleParams
  * @function hanlde params from users
  * @access private
- * @param {string} lang - lang string for Init() 
+ * @param {string} lang - lang string for Init()
  * @param {object} customParams - an object of params
  */
 const handleParams = (lang, customParams) => {
@@ -110,14 +109,14 @@ const handleOutput = (customParams) => {
     if (pdf_bin) {
       files = { pdf: data, ...files };
     }
-    
+
     if (pdf_auto_download) {
       adapter.writeFile(`${pdf_name}.pdf`, data, 'application/pdf');
     }
   }
 
   return files;
-}
+};
 
 /**
  * handleInit