# fsVarsLVarSet<no value>
The **fsVarsLVarSet** function can be used to set the value of a specific `LVar`.

 

##### Syntax

``` wasm
FsVarError fsVarsLVarGet(
    FsLVarId lVarId,
    FsUnitId unitId,
    double value
);
```

 

##### Parameters

{{< table-wrapper >}}

| Parameters | Description                                                                  |
|------------|------------------------------------------------------------------------------|
| `lVarId`   | The ID of an `LVar` (found using `fsVarsGetLVarId` or `fsVarsRegisterLVar`). |
| `unitId`   | The ID of a unit (found using `fsVarsGetUnitId`).                            |
| `value`    | The new value of the `LVar`.                                                 |

{{< /table-wrapper >}}


 

##### Return Values

The function returns `FsVarError`, where 0 means there is no error (in which case, the value has been set in the `LVar`).

 

##### Example

``` wasm
FsUnitId unitId = fsVarsGetUnitId("DEGREES");
FsLVarId lVarId = fsVarsRegisterLVar("Toto");
double value = 5;
if (fsVarsLVarSet(lVarId, unitId, value) == FS_VAR_ERROR_NONE)
{
    // valid
}
else
{
    // error
}
```