Removed references to concat method of specifying multiple langs per #887 (#889)

docs/api.md

@@ -31,7 +31,7 @@
 
 **Arguments:**
 
-- `langs` a string to indicate the languages traineddata to download, multiple languages are concated with **+**, ex: **eng+chi\_tra**
+- `langs` a string to indicate the languages traineddata to download, multiple languages are specified using an array (['eng', 'chi_sim'])
 - `oem` a enum to indicate the OCR Engine Mode you use
 - `options` an object of customized options
   - `corePath` path to a directory containing **both** `tesseract-core.wasm.js` and `tesseract-core-simd.wasm.js` from [Tesseract.js-core](https://www.npmjs.com/package/tesseract.js-core) package
@@ -155,7 +155,7 @@ This list is incomplete.  As Tesseract.js passes parameters to the Tesseract eng
 
 **Arguments:**
 
-- `langs` a string to indicate the languages traineddata to download, multiple languages are concated with **+**, ex: **eng+chi\_tra**
+- `langs` a string to indicate the languages traineddata to download, multiple languages are specified using an array (['eng', 'chi_sim'])
 - `oem` a enum to indicate the OCR Engine Mode you use
 - `config` an object of customized options which are set prior to initialization (see details above)
 - `jobId` Please see details above

docs/examples.md

@@ -37,7 +37,7 @@ const worker = await createWorker('eng', 1, {
 ```javascript
 const { createWorker } = require('tesseract.js');
 
-const worker = await createWorker('eng+chi_tra');
+const worker = await createWorker(['eng', 'chi_tra']);
 
 (async () => {
   const { data: { text } } = await worker.recognize('https://tesseract.projectnaptha.com/img/eng_bw.png');

tests/recognize.test.js

@@ -145,7 +145,7 @@ describe('recognize()', () => {
       .map(name => ({ name, mode: PSM[name] }))
       .forEach(({ name, mode }) => (
         it(`support PSM.${name} mode`, async () => {
-          await workerLegacy.reinitialize('eng+osd');
+          await workerLegacy.reinitialize(['eng', 'osd']);
           await workerLegacy.setParameters({
             tessedit_pageseg_mode: mode,
           });
@@ -162,7 +162,7 @@ describe('recognize()', () => {
       .map(name => ({ name, mode: PSM[name] }))
       .forEach(({ name, mode }) => (
         it(`support PSM.${name} mode`, async () => {
-          await worker.reinitialize('eng+osd');
+          await worker.reinitialize(['eng', 'osd']);
           await worker.setParameters({
             tessedit_pageseg_mode: mode,
           });