@transferwise/neptune-validation/dist/index.mjs

Neptune Web validation

const isString = value => typeof value === 'string';
const isNumber = value => typeof value === 'number' && !Number.isNaN(value);
const isInteger = value => {
  return isNumber(value) && Math.floor(value) === value;
};
const isBoolean = value => typeof value === 'boolean';
const isObject = value => typeof value === 'object' && !isNull(value) && value.constructor === Object;
const isArray = value => Array.isArray(value);
const isNull = value => value === null;
const isUndefined = value => typeof value === 'undefined';

/**
 * Checks empty values for arrays, objects and strings.
 */
const isEmpty = value => isString(value) && value.length === 0 || (isObject(value) || isArray(value)) && Object.keys(value).length === 0;

const keyMap = {
  SPACE: {
    key: [' ', 'Spacebar'],
    keyCode: 32
  },
  ENTER: {
    key: 'Enter',
    keyCode: 13
  },
  TAB: {
    key: 'Tab',
    keyCode: 9
  },
  ESCAPE: {
    key: 'Escape',
    keyCode: 27
  }
};

const isKey = ({
  keyType,
  event
}) => {
  if (!keyType || !event) {
    return false;
  }
  const upperCaseKeyType = keyType.toUpperCase();
  if (!Object.hasOwn(keyMap, upperCaseKeyType)) {
    return false;
  }
  const keyDef = keyMap[upperCaseKeyType];
  const {
    key,
    keyCode
  } = event;
  if (key) {
    return isArray(keyDef.key) ? keyDef.key.includes(key) : key === keyDef.key;
  }
  return keyCode === keyDef.keyCode;
};

export { isArray, isBoolean, isEmpty, isInteger, isKey, isNull, isNumber, isObject, isString, isUndefined };
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