IE 11 Compatibility?

[Joxch]

I was wondering if the data-forge 1.2.4 is compatible with IE 11? I've tried using polyfill io and importing the default, es5 and es5 to cover the Symbol usage but for some reason it hangs in iterable.js or iterator.js. Seems to never hit the iterator.prototype[Symbol.iterator] section. Using the polyfill io, I had no issues with putting the data into Dataframe but trying to run the subset function hangs.

[ashleydavis]

I use the TypeScript compiler to target JavaScript ES5.

Supposedly ES5 is supported by IE 11, although I haven't tested Data-Forge on IE 11.

Please provide example code in GitHub that is ready to test in IE 11 and I'll investigate it for you.

[Joxch]

import React, { Component } from 'react'; import { DataFrame } from 'data-forge';

class App extends React.Component { constructor(props) { super(props); this.testData = [ {'a':1,'b':2,'c':3,'d':4}, {'a':5,'b':6,'c':7,'d':8}, {'a':9,'b':10,'c':11,'d':12}, {'a':1,'b':2,'c':3,'d':4}, {'a':5,'b':6,'c':7,'d':8}, {'a':9,'b':10,'c':11,'d':12}, {'a':1,'b':2,'c':3,'d':4}, {'a':5,'b':6,'c':7,'d':8}, {'a':9,'b':10,'c':11,'d':12}, {'a':1,'b':2,'c':3,'d':4}, {'a':5,'b':6,'c':7,'d':8}, {'a':9,'b':10,'c':11,'d':12}, {'a':1,'b':2,'c':3,'d':4}, {'a':5,'b':6,'c':7,'d':8}, {'a':9,'b':10,'c':11,'d':12} ] }

componentDidMount() { console.log(this.testData); let df = new DataFrame(this.testData); console.log(df); }

render() { return (

);

} }

export default App;

This is my first time using Github for questions so I'm sorry if I posted too much. That's a quick example on React just getting the data into dataforge. I've also used polyfill.io in the index html page: . I noticed when I don't use the polyfill, IE gives me ReferenceError: 'Symbol' is undefined. With Polyfill, I'm getting:

Please let me know if there's something I missed out. Thanks!

[ashleydavis]

Thanks. Seems like a strange issue.

So the code works ok in Chrome?

If you want me to debug you'll need to provide me with a runnable copy of the code. You could do that by sharing a GitHub repo with me. Or you could email me a zip file containing the code.

My email is ashley@codecapers.com.au

If you can prep the code for me I'll be happy to run it under IE 11 and see what happens.

[Joxch]

Yeah the code seems to run successfully on Chrome with no issues. Let me see if I can get a file to you. ReactCreateApp-DataFrameTest.zip

I'll also email you a copy of the zip. Let me know if that doesn't work. Thanks!

[Joxch]

@ashleydavis I seemed to have received an error trying to send to that email address. Let me know if the attachment on here doesn't work.

[ashleydavis]

I download the zip file. Thanks for that. I'm just trying to download a VM with ie11 so I can test it!

[ashleydavis]

Sorry this is taking so long. I have ie11 but probably won't have a chance to look at it until Monday.

[ashleydavis]

I've been doing some research.

Unfortunately Symbol.iterator isn't supported by ie11. Data-Forge relies on this quite heavily and I'm not sure if there is anything I can do to fix the situation for you. Although, you can probably get by with loading a polyfill for ie11.

For example this library contains many polyfills including the one you need: https://github.com/zloirock/core-js

And here's another that just contains the Symbol polyfill: https://github.com/medikoo/es6-symbol

Thanks for reaching out and I'm sorry I can't be of much more help. Please let me know how it goes for you!