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<!doctype>
<html>
<head>
<title>Hello world</title>
<script src="../ext/bignumber.min.js"></script>
<script src="../ext/ethereum.js/dist/ethereum.js"></script>
<script>
var web3 = require('web3');
web3.setProvider(new web3.providers.HttpSyncProvider('http://localhost:8080'));
var eth = web3.eth;
var desc = [{
"name": "multiply(uint256)",
"inputs": [{
"name": "a",
"type": "uint256"
}],
"outputs": [{
"name": "d",
"type": "uint256"
}]
}];
var address = web3.eth.transact({
data: "0x603880600c6000396000f3006001600060e060020a600035048063c6888fa114601857005b6021600435602b565b8060005260206000f35b6000816007029050",
gasprice: "1000000000000000",
gas: "10000",
});
console.log("created contract with addr:"+ address);
var contract = web3.eth.contract(address, desc);
function calculate() {
var param = parseInt(document.getElementById('value').value);
var res = contract.call().multiply(param);
document.getElementById('result').innerText = res.toString(10);
}
</script>
</head>
<body>
<div><input type="number" id="value" onkeyup='calculate()'></input></div>
<div id="result"></div>
</body>
</html>
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