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Installing Emscripten

To Install Emscripten, follow instructions of Emscripten SDK

$ git clone https://github.com/huningxin/opencv.git

$ python ./platforms/js/build_js.py build_js

$ python ./platforms/js/build_js.py build_js --build_test
$ cd bin
$ http-server

Launch browser to http://localhost:8080.

Tests include:

$ cd bin
$ npm install
$ node tests.js

This will create offline version of OpenCV's complete official documentation in HTML. First, install Doxygen (a documentation generation tool).

$ apt-get install doxygen

Then, execute command

$ python ./platforms/js/build_js.py build_js --build_doc

After build succeeds, open build_js/doc/doxygen/html/index.html in the browser.

Install eslint, eslint-config-google and eslint-plugin-html:

$ npm install -g eslint
$ npm install -g eslint-config-google
$ npm install -g eslint-plugin-html

Lint tests:

$ cd modules/js/test
$ eslint *.js

Lint docs:

$ cd doc/js_tutorials/js_assets
$ eslint *.html