function endsWith( str, search, len ) {
	if ( !isString( str ) ) {
		throw new TypeError( format( 'invalid argument. First argument must be a string. Value: `%s`.', str ) );
	}
	if ( !isString( search ) ) {
		throw new TypeError( format( 'invalid argument. Second argument must be a string. Value: `%s`.', search ) );
	}
	if ( arguments.length > 2 ) {
		if ( !isInteger( len ) ) {
			throw new TypeError( format( 'invalid argument. Third argument must be an integer. Value: `%s`.', len ) );
		}
	} else {
		len = str.length;
	}
	return base( str, search, len );
}
Test if a string ends with the characters of another string.

@param {string} str - input string
@param {string} search - search string
@param {integer} [len=str.length] - substring length
@throws {TypeError} first argument must be a string
@throws {TypeError} second argument must be a string
@throws {TypeError} third argument must be an integer
@returns {boolean} boolean indicating if the input string ends with the search string

@example
var bool = endsWith( 'Remember the story I used to tell you when you were a boy?', 'boy?' );
// returns true

@example
var bool = endsWith( 'Remember the story I used to tell you when you were a boy?', 'Boy?' );
// returns false

@example
var bool = endsWith( 'To be, or not to be, that is the question.', 'to be' );
// returns false

@example
var bool = endsWith( 'To be, or not to be, that is the question.', 'to be', 19 );
// returns true

@example
var bool = endsWith( 'To be, or not to be, that is the question.', 'to be', -23 );
// returns true