dreamstate/esm/development/utils/typechecking.js

Store management library based on react context and observers

/**
 * Utility function to check whether the supplied parameter is a string.
 *
 * @param {unknown} target The parameter to check.
 * @returns {boolean} True if the parameter is a string, otherwise false.
 */
function isString(target) {
  return typeof target === "string";
}
/**
 * Utility function to check whether the supplied parameter is a number primitive.
 *
 * @param {unknown} target The parameter to check.
 * @returns {boolean} True if the parameter is a number, otherwise false.
 */
function isNumber(target) {
  return typeof target === "number";
}
/**
 * Utility function to check whether the supplied parameter is an object.
 *
 * @param {unknown} target The parameter to check.
 * @returns {boolean} True if the parameter is an object, otherwise false.
 */
function isObject(target) {
  return typeof target === "object" && target !== null;
}
/**
 * Utility function to check whether the supplied parameter is a symbol.
 *
 * @param {unknown} target The parameter to check.
 * @returns {boolean} True if the parameter is a symbol, otherwise false.
 */
function isSymbol(target) {
  return typeof target === "symbol";
}
/**
 * Utility function to check whether the supplied parameter is a function.
 *
 * @param {unknown} target The parameter to check.
 * @returns {boolean} True if the parameter is a function, otherwise false.
 */
function isFunction(target) {
  return typeof target === "function";
}
/**
 * Utility function to check whether the supplied parameter is undefined.
 *
 * @param {unknown} target The parameter to check.
 * @returns {boolean} True if the parameter is undefined, otherwise false.
 */
function isUndefined(target) {
  return typeof target === "undefined";
}
/**
 * Check whether the provided type is correct for query usage.
 *
 * @param {unknown} type The provided type to check.
 * @returns {boolean} True if the provided type is valid for query usage, otherwise false.
 */
function isCorrectQueryType(type) {
  return isString(type) || isNumber(type) || isSymbol(type);
}
/**
 * Check whether the provided type is correct for signal usage.
 *
 * @param {unknown} type The provided type to check.
 * @returns {boolean} True if the provided type is valid for signal usage, otherwise false.
 */
function isCorrectSignalType(type) {
  return isString(type) || isNumber(type) || isSymbol(type);
}

export { isCorrectQueryType, isCorrectSignalType, isFunction, isNumber, isObject, isString, isSymbol, isUndefined };