ae168edcfa
package.json "babel-messages" removed:
- babel-core
- babel-helper-replace-supers
- babel-plugin-transform-es2015-classes
- babel-traverse
"messages" remove from:
- babel-plugin-check-es2015-constants/src/index.js
- babel-plugin-transform-es2015-for-of/src/index.js
export "babel-messages" removed from:
- babel-core/src/index.js
import "babel-messages" removed from:
- babel-generator/src/index.js
- babel-helper-replace-supers/src/index.js
- babel-traverse/src/index.js
- babel-traverse/src/scope/index.js
- babel-traverse/src/visitors.js
package "babel-messages" removed completely.
💯️ All tests pass.
babel-plugin-check-es2015-constants
Validate ES2015 constants (prevents reassignment of const variables).
Example
In
const a = 1;
a = 2;
Out
repl: "a" is read-only
1 | const a = 1;
> 2 | a = 2;
| ^
Installation
npm install --save-dev babel-plugin-check-es2015-constants
Usage
Via .babelrc (Recommended)
.babelrc
{
"plugins": ["check-es2015-constants"]
}
Via CLI
babel --plugins check-es2015-constants script.js
Via Node API
require("babel-core").transform("code", {
plugins: ["check-es2015-constants"]
});
Note
This check will only validate consts. If you need it to compile down to var then you must also install and enable transform-es2015-block-scoping.