标签 "以太坊" 下的文章

问题：以太坊合约部署失败，报错：TypeError: param.map is not a function 或者 Error: Invalid number of parameters for "undefined". Got 2 expected 1!

解决：官方文档写的比较特别，所以被误导了。web3使用的是1.7.0

方法：
官方文档：

const myContract = await new web3.eth.Contract(JSON.parse(interface));    
myContract.deploy({
    data: '0x12345...',
    arguments: [123, 'My String']
})
.send({
    from: '0x1234567890123456789012345678901234567891',
    gas: 1500000,
    gasPrice: '30000000000000'
}, function(error, transactionHash){ ... })
.on('error', function(error){ ... })
.on('transactionHash', function(transactionHash){ ... })
.on('receipt', function(receipt){
   console.log(receipt.contractAddress) // contains the new contract address
})
.on('confirmation', function(confirmationNumber, receipt){ ... })
.then(function(newContractInstance){
    console.log(newContractInstance.options.address) // instance with the new contract address
});

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