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I need to create a boundary I &nbsp;google maps.<br />
<br />
When the user clicks I &nbsp;the mouse the maps create a polygno using that coordinate. <br />
<br />
Ifor you know a free api or a javascript code &nbsp;I will appreciate.
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I need to create a boundary I  google maps.

When the user clicks I  the mouse the maps create a polygno using that coordinate. 

Ifor you know a free api or a javascript code  I will appreciate.

Polygon I google maps

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.