3.7. nullThe JavaScript keyword null is a special value that indicates no value. null is usually considered a special value of object typea value that represents no object. null is a unique value, distinct from all other values. When a variable holds the value null, you know that it does not contain a valid object, array, number, string, or boolean value.[*]
When null is used in a Boolean context, it converts to false. When used in a numeric context, it converts to 0. And when used in a string context, it converts to "null". |