I'm playing Ethernaut Level 3, so I wrote the following code to retrieve the "guess" value:
async do_guess => {
let no = await web3.eth.getBlockNumber()
let block = await web3.eth.getBlock(no)
let factor = new web3.utils.BN('57896044618658097711785492504343953926634992332820282019728792003956564819968')
let result = new web3.utils.BN(block.hash)
let tmp = result.div(factor)
return tmp.toString()
}
let value = await do_guess()
console.log(value)
But the value is always "undefined" somehow, does anyone know what's wrong?
你得到未定义,因为这是在你的控制台中运行的最后一条语句的返回值,你的承诺可能永远不会解决。
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