Web3.js: How to determine if an Ethereum address exists

[TinyWJL]

I tested the interface 'getAccounts',return an empty array.

[Huanzhang89]

@TinyWJL which getAccounts method are you calling, web3.eth.getAccounts() or web3.eth.personal.getAccounts()`?

According to the documentation the method returns a Promise<array> so an empty array suggests that the node does not control any accounts.

[chankruze]

@TinyWJL All addresses exist. Do you mean is there a way to know if someone owns a private key that maps to a particular address?
Or if you want to check if a given string is a valid Ethereum address or not you can use web3.utils.isAddress(); which returns boolean.

More info about it can be found here.

[nivida]

Closed because of the ongoing clean up of the issue list. Feel free to ask this in our gitter channel or on stackoverflow.