Checks to see if the given expression is valid.
"unitsManager_var" is a variable referencing a UnitsManager object. |
"unitsManager_var" is a variable referencing a UnitsManager object. |
| Type | Description |
| boolean | Returns True if it is a valid expression. |
| Name | Type | Description |
| expression | string | The expression to validate. |
| units | string | The units to use when validating the expression. |