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Use in Node.js:
npm install immutable-object
Or, in a web app. You'll need ES5-shim for this to work in older web browsers.
var immutable = ;var first = ;var second = first;
You can use
immutable.createClass to define an immutable object constructor that adds methods to the prototype.
var Task = immutable;var task = "Buy ice cream";console;// Any change results in a new object.// So be sure to assign the result to use it.task = task;console;task = task;console;