Transpile To Es5 Corrupt Js Library In Angular 6 Project

I am trying to use Dygraph library in an Angular 6 project. It works perfectly in Chrome / FF, however it does not work in IE11. I installed the library through npm, and installed

Solution 1:

Turns out that, as recommended by jfriend00, the configuration needed to be:

{"compileOnSave":false,"compilerOptions":{"outDir":"./dist/out-tsc","sourceMap":true,"declaration":false,"moduleResolution":"node","emitDecoratorMetadata":true,"experimentalDecorators":true,"target":"es5","typeRoots":["node_modules/@types"],"lib":["es5","es6","dom"]}}

What does lib does is not that clear in the documentation, but it seems that it should list the formats from all source codes to be compiled.

As I have DOM, ES5 and ES6 code, I needed all of them. The template I used only contained only DOM/ES6 code, that is probably why the lib was set to DOM/ES2017 only.