Official Go implementation of the Ethereum protocol
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<!doctype>
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<html>
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<head>
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<script type="text/javascript" src="js/es6-promise/promise.min.js"></script>
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<script type="text/javascript" src="../dist/ethereum.js"></script>
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<script type="text/javascript">
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var web3 = require('web3');
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web3.setProvider(new web3.providers.AutoProvider());
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function watchBalance() {
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var coinbase = web3.eth.coinbase;
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var originalBalance = 0;
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web3.eth.balanceAt(coinbase).then(function (balance) {
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originalBalance = web3.toDecimal(balance);
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document.getElementById('original').innerText = 'original balance: ' + originalBalance + ' watching...';
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});
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web3.eth.watch({altered: coinbase}).changed(function() {
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web3.eth.balanceAt(coinbase).then(function (balance) {
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var currentBalance = web3.toDecimal(balance);
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document.getElementById("current").innerText = 'current: ' + currentBalance;
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document.getElementById("diff").innerText = 'diff: ' + (currentBalance - originalBalance);
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});
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});
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}
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</script>
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</head>
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<body>
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<h1>balance</h1>
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<button type="button" onClick="watchBalance();">watch balance</button>
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<div></div>
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<div id="original"></div>
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<div id="current"></div>
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<div id="diff"></div>
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</body>
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</html>
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