isset Function

Checks if the specified value exists.

Summary

ElementFunction
ReturnsBoolean

Arguments

valObject|Array|Function|String|Number|regexpThe value to check if exists.

Example

nano.isset(foo);
CodeMessageLineFile
2count(): Parameter must be an array or an object that implements Countable224/home2/njsorg/public_html/pagetype/content/pages/en/docml.viewer.php