assert

function

assert()

Option name	Type	Description
condition	Boolean	Result of the evaluated condition
errorMessage	String	Message explainig the error in case it is thrown
return		void

Throws an error if the boolean passed to it evaluates to false.
To be used like this:

        assert(myDate !== undefined, "Date cannot be undefined.");

function assert(condition, errorMessage) {
  const error = processCondition(condition, errorMessage);
  if (typeof error === 'string') {
    throw new Error(error);
  }
}

warn

method

assert.warn()

Option name	Type	Description
condition	Boolean	Result of the evaluated condition
errorMessage	String	Message explainig the error in case it is thrown
return		void

Logs a warning if the boolean passed to it evaluates to false.
To be used like this:

        assert.warn(myDate !== undefined, "No date provided.");

assert.warn = function warn(condition, errorMessage) {
  const error = processCondition(condition, errorMessage);
  if (typeof error === 'string') {
    console.warn(error);
  }
};

export default assert;