> For the complete documentation index, see [llms.txt](https://docs.csml.dev/language/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.csml.dev/language/standard-library/object-methods.md).

# Object methods

### .keys()

Return the list of all 1st-level properties in the target object.

```cpp
object.keys() => Array[String]

// example
do val = { "toto": 1, "tutu": 2 }
do val.keys() // ["toto", "tutu"]
```

### .values()

Return the list of all 1st-level-property values in the target object.

```cpp
object.values() => Array[String]

// example
do val = { "toto": 1, "tutu": 2 }
do val.values() // [1, 2]
```

### .remove(String)

Remove the given property from the target object.

```cpp
object.remove("property") => void

// example
do val = { "toto": 1, "tutu": 2 }
do val.remove("toto") // { "tutu": 2 }
```

### .length()

Return the number of 1st-level properties in the target object.

```cpp
object.length() => Integer

// example
do val = { "toto": 1, "tutu": 2 }
do val.length() // 2
```

### .assign(b)

Insert all elements of the parameter object into the target object.

```cpp
do obj = {"a": 1}
do obj.assign({"b": 2})
say "{{obj}}" // {"a": 1, "b": 2}
```