isUndefined
1.6

isUndefined(obj) -> Boolean

Returns true if obj is of type undefined, false otherwise.

Examples


Object.isUndefined();
//-> true

Object.isUndefined(undefined);
//-> true

Object.isUndefined(null);
//-> false

Object.isUndefined(0);
//-> false

Object.isUndefined("");
//-> false