Store Values Using Should Callback Function @gleb
Store Values Using Should Callback Function  @gleb
Uploaded June 2023 | Updated September 2026, 1 week ago
Cypress retries querying commands like cy.contains and cy.get. You can attach assertions to the command to retry the command until the assertion passes: cy.get('#output').should('have.text', '42') You can even have ".should(callback)" to write your own logic to check the current subject element. For example, you could store all values you see during retries and then later validate the seen values:
cy.log('**shows 5 messages**')
const messages = new Set()
cy.contains('button', 'Start').click()
cy.get('#output').should(function ($el) {
const text = $el.text()
messages.add(text)
expect(text).to.equal('42')
})
cy.wrap(messages).then(Array.from).should('have.length.gte', 5)
Find this recipe at glebbahmutov.com/cypress-examples
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gleb bahmutov |

Store Values Using Should Callback Function

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