Let's say we want to look up the available balance in the table, parse the value, then enter it into the input field. The full test code is available at https://glebbahmutov.com/cypress-exam... We can chain the commands to find the row, then find the cell, then parse the text into a number.
// find the row that includes the balance text
// and then find a child TD cell with "$"
cy.contains('tr', 'Available balance')
.contains('td', '$') // yields jQuery object
.invoke('text') // yields its text
.invoke('replace', '$', '') // removes "$" character
.then(parseFloat) // yields a number
// confirm the balance is reasonable
.should('be.within', 1, 10_000)
.then(function (balance) {
// now we can type this balance into the input field
cy.get('#transfer').type(balance)
})
Tip: a much better test would know exactly the balance shown on the page, without looking it up:
cy.contains('tr', 'Available balance').contains('td', '$800')
cy.get('#transfer').clear().type(800)