具有ES2015 babel预设的木偶不起作用

Question

I am using Webpack with babel-loader, what have preset es2015 , and i see this trouble: when including Marionette (v.2.4.3) es2015 preset change this agrument in /lib/core/backbone.marionette.js:26 to undefined instead this . But this argument take root variable ( line 10 ) and he see, what argument is undefined (not this ) and output error.

I see, what in es2015 preset including babel-plugin-transform-es2015-modules-commonjs , what include babel-plugin-transform-strict-mode , which response for strict mode and close es6 modules.

I tried to modify es2015 plugin, changing require("babel-plugin-transform-es2015-modules-commonjs") to [require("babel-plugin-transform-es2015-modules-commonjs"), {"strict": false}] , but this step don't help me to solve problem.

Who know, this problem with Marionette, or es2015 preset in babel-loader , or with me, and how fix it?

Answer 1

I resolve my problem. My solution is allow top level this in modules-commonjs.

In babel-preset-es2015 change require("babel-plugin-transform-es2015-modules-commonjs") to [require("babel-plugin-transform-es2015-modules-commonjs"), { allowTopLevelThis: true }]