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Advanced Frontend with React.js [Eng+Ukr]

Advanced Frontend with React.js [Eng+Ukr]

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Which of the following are the correct ways to define an optional field in Zod?

z.string().optional()

100%

z.string()

z.optional(z.string())

100%

z.optional().string()

z.string().nullable()

z.nullable().string()

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Which method in Zod can be used to validate a number within a specific range?

.within()

.between()

.min() and .max()

.gte() and .lte()

.range()

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How do you validate that a string field has a minimum length in Zod?

z.string().minLength(3)

❌

z.string().gte(3)

❌

z.string().hasLength(3)

z.string().min(3)

z.string().length(3)

What is the correct syntax for integrating a Zod schema with useForm?

useForm(zodResolver(schema))

useForm({ schema })

useForm({

resolver: zodResolver(schema),

mode: "onBlur",

})

useForm({ resolver: zodResolver(schema) })

useForm({ zodSchema: schema })

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What happens if the form data does not match the Zod schema in React Hook Form?

Data is submitted anyway

The form is reset automatically

The errors object is populated with validation errors

Zod automatically fixes the data

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How do you access the validation errors in React Hook Form?

Through the form's ref

Through the onSubmit callback

Through the useForm return values

100%

By accessing the errors object returned by useForm

100%

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How do you specify a field that must be either a string or a number in Zod?

z.mixed([z.string(), z.number()])

z.string().number()

z.string().or(z.number())

z.union([z.string(), z.number()])

z.alternate(z.string(), z.number())

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Please, choose the correct ways to provide custom error messages

z.string().min(5, "Minimum 5 characters required")

z.string().min(5).error("Minimum 5 characters required")

z.string().min(5).message("Minimum 5 characters required")

z.date({

required_error: "Please select a date and time",

invalid_type_error: "That's not a date!",

})

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Will React hooks work inside class components?

What are the possible types of state variable in useState hook?

number

object

string

boolean

array

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