I have the result of a promise that if I execute this, it takes me as a console to the result I want:
web3.eth.getBalance(localStorage.getItem('address')).then(
console.log
);
But when I try to put the value in a P-label, nothing appears. How should I mount this sentence right?
web3.eth.getBalance(localStorage.getItem('address')).then(
$('#balance').text()
);
The promises wait for a function as the first parameter, in the first example with the console.log you are passing a function, in the second with the $('#balance').text() you are passing the result of the execution of a function, which can or not be a function, in this case it is not.
What you could do is the following:
web3.eth.getBalance(localStorage.getItem('address')).then(function(text){
$('#balance').text(text)
});