# isOrderedDict {#isordereddict}

**Parent topic:**[Functions](../../Functions/category.md)

## Syntax {#syntax}

`isOrderedDict(X)`

## Arguments {#arguments}

`X` is a dictionary.

## Details {#details}

The function returns "true" if *X* is an ordered dictionary.

## Examples {#examples}

```
x=1 2 3
y=4.5 7.8 4.3
z=dict(x,y);
isOrderedDict(z)
// output: false

z1=dict(x,y,true);
isOrderedDict(z1)
// output: true
```

