chayns-components/dist/esm/react-chayns-formatted_input/utils/IntegerFormatter.js

A set of beautiful React components for developing chayns® applications.

import Formatter from './Formatter';
export default class IntegerFormatter extends Formatter {
  /* eslint-disable-next-line class-methods-use-this */
  format(value) {
    const parsed = this.parse(value);
    if (!parsed && parsed !== 0) {
      return '';
    }
    return String(parsed);
  }

  /* eslint-disable-next-line class-methods-use-this */
  parse(value) {
    if (value === '') {
      return null;
    }
    const parsedValue = parseInt(value, 10);

    /* eslint-disable-next-line no-restricted-globals */
    return isNaN(parsedValue) || !isFinite(parsedValue) ? false : parsedValue;
  }

  /* eslint-disable-next-line class-methods-use-this */
  validate(value, selection) {
    return {
      valid: value === '' || value === String(parseInt(value, 10)),
      selection: {
        start: Math.max(0, selection.start - 1),
        end: Math.min(value.length, selection.end)
      }
    };
  }
}
IntegerFormatter.ALLOWED_CHARS = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'];
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