7a1ccf076c
* normalize npmignores * fixup eslint ignore, etc * lint * remove unused * rm from gitignore * use strict
babel-plugin-transform-es2015-spread
Compile ES2015 spread to ES5
Example
In
var a = ['a', 'b', 'c'];
var b = [...a, 'foo'];
var c = { foo: 'bar', baz: 42 };
var d = {...c, a: 2};
Out
var _extends = Object.assign || function (target) {
for (var i = 1; i < arguments.length; i++) {
var source = arguments[i];
for (var key in source) {
if (Object.prototype.hasOwnProperty.call(source, key)) {
target[key] = source[key];
}
}
}
return target;
}
var a = [ 'a', 'b', 'c' ];
var b = [].concat(a, [ 'foo' ]);
var c = { foo: 'bar', baz: 42 };
var d = _extends({}, c, { a: 2 });
Installation
npm install --save-dev babel-plugin-transform-es2015-spread
Usage
Via .babelrc (Recommended)
.babelrc
Without options:
{
"plugins": ["transform-es2015-spread"]
}
With options:
{
"plugins": [
["transform-es2015-spread", {
"loose": true
}]
]
}
Via CLI
babel --plugins transform-es2015-spread script.js
Via Node API
require("babel-core").transform("code", {
plugins: ["transform-es2015-spread"]
});
Options
loose
boolean, defaults to false.
In loose mode, all iterables are assumed to be arrays.