Is Smart Contracts variable is updated?

Question

Lets assume im having mapping(address => string) names its likes storing user names with their address..function get() return string{ return names[msg.sender]}

and for retrieving the name

function setName(string memory name) return (string){
names[msg.sender] = name
return names[msg.sender]
}

in remix ide i can clearly get and setname with multiple accounts it works perfect... But when it comes to hardhat network locally i deployed but im getting empty string in get function and in set function it returns the string correctly.. After if i try to return the name by the same address im getting same empty string..

Im having a doubt. Am i using it wrong... Because im using that names variable as a database... Whoever set their name and retrieve it later right? But is this possible thats my question.. is that state is kept stored on blockchain or not? Any help

Answer 1

Yes, states variables are stored in blockchain and are mutable/accessible through the types/methods you defined. So, what you're trying to achieve (Variables as a database) is right, and what happens on your hardhat is probably due to a local miss-configuration.