If I change text in the for loop, it doesn't work

[bfrontend]

import ora from 'ora';
const spinner = ora().start()
for (let i = 0; i< 100; i++) {
    spinner.text = `run time ${i}`
}

[sindresorhus]

Looping through 100 numbers is so fast that it would not be visible. You need to add a delay.