Textarea Lines Number

How to

<script src="public/linesnumber.min.js"></script>
<script>
    document.getElementById("teste").LinesNumber(); //Must be a textarea
</script>

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public		public
src		src
stylesheets		stylesheets
.babelrc		.babelrc
.gitattributes		.gitattributes
.gitignore		.gitignore
.travis.yml		.travis.yml
README.md		README.md
_config.yml		_config.yml
index.html		index.html
package.json		package.json
tests.js		tests.js
webpack.config.js		webpack.config.js
yarn-error.log		yarn-error.log
yarn.lock		yarn.lock