If you have multiple "data-..." attributes on your HTML element, you can grab them all using the "dataset" property. This property has all camel-cased string values. If you want to confirm the entire set, you first convert it into a plain object and then use "deep.equal" assertion
cy.get('article#electric-cars')
.should('have.prop', 'dataset')
.then(JSON.stringify)
.then(JSON.parse)
.should('deep.include', {
columns: '3',
indexNumber: '12314',
})
This recipe is at http://glebbahmutov.com/cypress-examp...
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