Ethereum Cookbook

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All the preceding examples use the already deployed contract abstraction. We can deploy a different version to the network using the new() method:

TokenContract.new().then(function(instance) {     // New contract instance    console.log(instance.address); }).catch(function(err) {     // Exception});

Truffle also provides an option to create an instance from any deployed address. The instance can be created using the at() method:

var instance = TokenContract.at("0x...");