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0 votes
0 answers
252 views

Babel doesn't work with IE11 on built in class Map extending

I have some legacy code, a class ExtraMap that extends built-in Map class. export class ExtraMap<K, V> extends Map<K, V> { getOr(key: K, or: OrFunctionType = defaultOrFunction): V { ...
Tinmar's user avatar
  • 370
1 vote
1 answer
3k views

Converting a JavaScript file with Babel for use in IE11

I have a JavaScript file mystuff.js which throws errors in IE11 (due to for..of loops, etc). So I try to convert it with Babel for use in IE11. However the output from Babel does not seem to be IE11-...
halloleo's user avatar
  • 9,924
0 votes
1 answer
113 views

Why javascript objects have an extra attribute called Symbol()_a.* in IE11?

Working on a webpage, the strange thing above occurred in IE11. Some undefined object Symbol()_a. followed by a randowm string got added on each object I created. That broke my application. As I ...
digital-message's user avatar
2 votes
0 answers
616 views

babel-plugin-transform-object-assign or babel-polyfill?

I am using webpack 4, mobx state tree and babel. When I run mobx state tree I get this error on IE 11 {exception} Object doesn't support property or method 'assign' in mobx-state-tree.module.js ...
chobo2's user avatar
  • 85k
-1 votes
1 answer
67 views

IE11 stopped working just I open devtools

IE11 stopped working just I open devtools. http://prntscr.com/i8o70j I use webpack, babel, es6, react I dont't have any idea how to fix it!
Igor Chesnishyy's user avatar
2 votes
1 answer
4k views

Error "SCRIPT 1028 Expected identifier, string or number" with IE11

I'm using Browserify to transpile my JS code to be sure the final code is compatible with most browsers, and all is working perfectly with Chrome and Firefox. But I'm using a package (dot-prop) that ...
Pragmateek's user avatar
  • 13.2k