null
[ Type ]
The value null represents the intentional absence of a value.
 | Defined in ECMAScript 1, supported by all JavaScript-enabled browsers |
TE2000 | HMI Engineering · 0 次阅读
TE2000 | HMI Engineering · 0 次阅读
[ Type ]
The value null represents the intentional absence of a value.
| Defined in ECMAScript 1, supported by all JavaScript-enabled browsers |