@babel/plugin-transform-spread
Example
In
var a = ['a', 'b', 'c'];
var b = [...a, 'foo'];
var c = foo(...a);
Out
var a = ['a', 'b', 'c'];
var b = a.concat(['foo']);
var c = foo.apply(void 0, a);
Installation
npm install --save-dev @babel/plugin-transform-spread
Usage
Via .babelrc (Recommended)
.babelrc
Without options:
{
"plugins": ["@babel/plugin-transform-spread"]
}
With options:
{
"plugins": [
["@babel/plugin-transform-spread", {
"loose": true
}]
]
}
Via CLI
babel --plugins @babel/plugin-transform-spread script.js
Via Node API
require("@babel/core").transform("code", {
plugins: ["@babel/plugin-transform-spread"]
});
Options
loose
boolean
, defaults to false
.
In loose mode, all iterables are assumed to be arrays.
You can read more about configuring plugin options here