@babel/plugin-transform-proto-to-assign
Detail
This means that the following will work:
JavaScript
var foo ={a:1};
var bar ={b:2};
bar.__proto__= foo;
bar.a;// 1
bar.b;// 2
however the following will not:
JavaScript
var foo ={a:1};
var bar ={b:2};
bar.__proto__= foo;
bar.a;// 1
foo.a=2;
bar.a;// 1 - should be 2 but remember that nothing is bound and it's a straight copy
This is a case that you have to be aware of if you intend to use this plugin.
Example
In
JavaScript
bar.__proto__= foo;
Out
JavaScript
function_defaults(obj, defaults){...}
_defaults(bar, foo);
Installation
- npm
- Yarn
- pnpm
- Bun
npm install --save-dev @babel/plugin-transform-proto-to-assign
yarn add --dev @babel/plugin-transform-proto-to-assign
pnpm add --save-dev @babel/plugin-transform-proto-to-assign
bun add --dev @babel/plugin-transform-proto-to-assign
Usage
With a configuration file (Recommended)
babel.config.json
{
"plugins":["@babel/plugin-transform-proto-to-assign"]
}
Via CLI
Shell
babel --plugins @babel/plugin-transform-proto-to-assign script.js
Via Node API
JavaScript
require("@babel/core").transformSync("code",{
plugins:["@babel/plugin-transform-proto-to-assign"],
});