isDefined()function
isDefined(value: T | undefined): value is T
| Param | Type | |
|---|---|---|
value | T | The value to test. |
| Return | |
|---|---|
value is T | true if the value is not undefined, otherwise false. |
Is a value defined (i.e. not undefined)?
isDefined(value: T | undefined): value is T
| Param | Type | |
|---|---|---|
value | T | The value to test. |
| Return | |
|---|---|
value is T | true if the value is not undefined, otherwise false. |
Is a value defined (i.e. not undefined)?