awtk/docs/fscript_object.md
2021-09-09 15:10:12 +08:00

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## object 扩展函数
object 适用于 app\_conf、typed\_array 和 array 等各种对象。
### 1. object_create
> 创建缺省的 object 对象,可以当一个 map 使用。
----------------------------
#### 原型
```
object_create() => value
```
#### 示例
```
a = object_create()
```
### 2. object_get
> 获取对象的属性。
可以通过 value\_is\_valid 来判断返回值是否有效。
----------------------------
#### 原型
```
object_get(o, key) => value
object_get(o, key, defval) => value
```
也可以直接访问对象的属性:
```
print(o.key)
```
#### 示例
```
print(object_get(a, "age"))
print(a.age)
```
### 3. object_set
> 设置对象的属性。
----------------------------
#### 原型
```
object_set(a, key, value) => bool
```
#### 示例
```
object_set(a, "age", 123);
```
### 4. object_remove
> 删除对象的属性。
----------------------------
#### 原型
```
object_remove(a, key) => bool
```
#### 示例
```
object_remove(a, "age")
```
### 完整示例
```js
a = object_create()
assert(!value_is_null(a))
assert(object_set(a, "age", 123))
assert(a.age == 123)
assert(object_set(a, "name", "awtk"))
assert(a.name == "awtk")
assert(object_get(a, "age") == 123)
print(object_get(a, "age"))
assert(object_remove(a, "age"))
assert(!value_is_valid(object_get(a, "age")))
unset(a)
person = object_create()
assert(!value_is_null(person))
assert(object_set(person, "age", 123))
assert(person.age == 123)
assert(object_set(person, "name", "awtk"))
assert(person.name == "awtk")
unset(person)
```