node-v8-clone v0.6.2
node-v8-clone
It's a c++ addon for node.js that does the most accurate cloning for node.js. It's also very fast in some cases (benchmarks inside).
Installation:
Tested on node.js versions 0.8, 0.9, 0.10 and 0.11.13 (prior 0.11.x versions are not compatible).
You may be asked to install make
and g++
as well.
npm install node-v8-clone
Usage:
var clone = require('node-v8-clone').clone;
var a = { x: { y: {} } };
// deep clone
var b = clone(a, true);
a === b // false
a.x === b.x // false
a.x.y === b.x.y // false
// shallow clone
var c = clone(a, false);
a === c // false
a.x === c.x // true
a.x.y === c.x.y // true
Extended syntax:
var Cloner = require('node-v8-clone').Cloner;
var a = [1, [2, 3, 4], 5];
// create a cloner instance for deep cloning optimized for arrays.
var c = new Cloner(true, { 'Array': Cloner.deep_array });
var b = c.clone(a);
a === b // false
a[1] === b[1] // false
Benchmark results
Running tests
For running tests you'll need to install dev dependencies at first (run in node-v8-clone dir):
$ npm install
To run tests for node-v8-clone run:
$ npm test
To run tests for 3rdparty modules run:
$ npm run-script benchmark-prepare
$ npm run-script test-3rdparty
Test results are available here.
Also you may want to check the module's page at Travis CI.
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