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55 lines
1.4 KiB
55 lines
1.4 KiB
<!doctype>
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<html>
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<head>
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<title>Hello world</title>
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<script src="../ext/bignumber.min.js"></script>
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<script src="../ext/ethereum.js/dist/ethereum.js"></script>
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<script>
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var web3 = require('web3');
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web3.setProvider(new web3.providers.HttpSyncProvider('http://localhost:8080'));
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var eth = web3.eth;
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var desc = [{
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"name": "multiply(uint256)",
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"inputs": [{
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"name": "a",
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"type": "uint256"
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}],
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"outputs": [{
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"name": "d",
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"type": "uint256"
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}]
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}];
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var address = web3.eth.transact({
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data: "0x603880600c6000396000f3006001600060e060020a600035048063c6888fa114601857005b6021600435602b565b8060005260206000f35b600081600702905091905056",
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gasprice: "1000000000000000",
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gas: "10000",
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});
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var contract = web3.eth.contract(address, desc);
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function calculate() {
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var param = parseInt(document.getElementById('value').value);
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var res = contract.call().multiply(param);
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document.getElementById('result').innerText = res.toString(10);
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}
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</script>
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</head>
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<body>
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<h3>Contract content</h3>
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<textarea style="height:100px; width: 300px;" disabled="disabled">
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contract test {
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function multiply(uint a) returns(uint d) {
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return a * 7;
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}
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}
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</textarea>
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<code><pre>
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603880600c6000396000f3006001600060e060020a600035048063c6888fa1140
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05b6021600435602b565b8060005260206000f35b600081600702905091905056</pre></code>
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<hr>
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<div>7 x <input type="number" id="value" onkeyup='calculate()'></input> =
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<span id="result"></spa>
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</body>
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</html>
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