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Visualizaçõeshow to set button disable in certain condition in react?
import PhoneInput, { formatPhoneNumber, formatPhoneNumberIntl, isValidPhoneNumber } from 'react-phone-number-input';
const [fields, setFields] = React.useState([{ value: null }]);
<PhoneInput
id="phoneNumbers1"
type="text"
placeholder="Enter phone number "
value={field.value || ""}
defaultCountry="US"
international
name="phoneNumbers"
error={disable}
autoComplete='off'
onBlur={formik.handleBlur}
onChange={(e) => handleChange(idx, e)}
onClick={() => setIndex(idx)}
/>
<button
type="button"
hidden={fields.length > 1}
data-value={fields.length}
disabled={!fields[0]?.value && !(isValidPhoneNumber(fields[0]?.value ||''||fields.length<10))}
onClick={() => handleAdd()}
>
+ Phone
</button>
Inside button inside disable property if I try to give condition that button is disabled until user give 10 digit phone number with condition field.length < 10. It throws an error "TypeError: A text for parsing must be a string." What should be the condition inside disable attribute that until user give 10 digit phone number button should disable?
2 Respostas
Responde à pergunta0
If I had to guess here, it seems isValidPhoneNumber may be expecting a string value, but if fields[0]?.value is falsey, and '' is obviously falsey, the boolean fields.length < 10 value is passed. I suspect you want this last condition outside of the isValidPhoneNumber validator function. I also suspect you want to check the length of the value, not the length of the fields array.
disabled={
!isValidPhoneNumber(fields[0]?.value || "") ||
fields[0]?.value?.length < 10
}
0
I think the last condition is checking the length of array instead the length of the first value of the fields array i.e. fields[0].value.
Try to use
disabled={!fields[0]?.value && !(isValidPhoneNumber(fields[0]?.value ||''||fields[0]?.value.length<10))}