mirror of https://github.com/ethereum/go-ethereum
parent
b5918a1faa
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<!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: "0x603880600c6000396000f3006001600060e060020a600035048063c6888fa114601857005b6021600435602b565b8060005260206000f35b6000816007029050", |
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gasprice: "1000000000000000", |
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gas: "10000", |
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}); |
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console.log("created contract with addr:"+ address); |
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var contract = web3.eth.contract(address, desc); |
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|
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function calculate() { |
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var param = parseInt(document.getElementById('value').value); |
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|
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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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|
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<div><input type="number" id="value" onkeyup='calculate()'></input></div> |
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<div id="result"></div> |
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|
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</body> |
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</html> |
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