function isCollection( value ) {
	return (
		typeof value === 'object' &&
		value !== null &&
		typeof value.length === 'number' &&
		isInteger( value.length ) &&
		value.length >= 0 &&
		value.length <= MAX_LENGTH
	);
}
Tests if a value is a collection.

@param {*} value - value to test
@returns {boolean} boolean indicating whether a value is a collection

@example
var bool = isCollection( [] );
// returns true

@example
var bool = isCollection( {} );
// returns false