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I was able to get estraverse via npm and get it work on a node app. But when when i tried to install it via bower for client side usage, the install failed saying "optionator package is not found". And when i tried to load the js file directly, it showing "Uncaught ReferenceError: exports is not defined" in the console.

MohanRaj Balumuri
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  • Do you happen to find the solution for the error"Uncaught ReferenceError: exports is not defined"? I face the same error too. Thanks! – iLoeng Sep 16 '15 at 00:24

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Finally found the solution. Apparently the current estraverse code base is not working in a web browser but it works fine in browserify or webpack. Thus, you need to built estraverse using any of this module.

I used browserify to to built it using the code below:

browserify --standalone estraverse estraverse-master/estraverse.js > estraverse-master/build/estraverse.browser.js

Now it works fine.

iLoeng
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    *"is not working in a web browser but it works fine in browserify or webpack"* browserify and webpack are not JavaScript environments. They don't execute JavaScript code, so code cannot work "in" them. They are module bundlers which bundle modules into a single file so it can be executed in browsers. – Felix Kling Dec 23 '15 at 23:21